content: // Protocol Buffers - Google's data interchange format
  // Copyright 2008 Google Inc.  All rights reserved.
  // https://developers.google.com/protocol-buffers/
  //
  // Redistribution and use in source and binary forms, with or without
  // modification, are permitted provided that the following conditions are
  // met:
  //
  //     * Redistributions of source code must retain the above copyright
  // notice, this list of conditions and the following disclaimer.
  //     * Redistributions in binary form must reproduce the above
  // copyright notice, this list of conditions and the following disclaimer
  // in the documentation and/or other materials provided with the
  // distribution.
  //     * Neither the name of Google Inc. nor the names of its
  // contributors may be used to endorse or promote products derived from
  // this software without specific prior written permission.
  //
  // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  
  package com.google.protobuf;
  
  import static com.google.protobuf.UnittestLite.defaultBoolExtensionLite;
  import static com.google.protobuf.UnittestLite.defaultBytesExtensionLite;
  import static com.google.protobuf.UnittestLite.defaultCordExtensionLite;
  import static com.google.protobuf.UnittestLite.defaultDoubleExtensionLite;
  import static com.google.protobuf.UnittestLite.defaultFixed32ExtensionLite;
  import static com.google.protobuf.UnittestLite.defaultFixed64ExtensionLite;
  import static com.google.protobuf.UnittestLite.defaultFloatExtensionLite;
  import static com.google.protobuf.UnittestLite.defaultForeignEnumExtensionLite;
  import static com.google.protobuf.UnittestLite.defaultImportEnumExtensionLite;
  import static com.google.protobuf.UnittestLite.defaultInt32ExtensionLite;
  import static com.google.protobuf.UnittestLite.defaultInt64ExtensionLite;
  import static com.google.protobuf.UnittestLite.defaultNestedEnumExtensionLite;
  import static com.google.protobuf.UnittestLite.defaultSfixed32ExtensionLite;
  import static com.google.protobuf.UnittestLite.defaultSfixed64ExtensionLite;
  import static com.google.protobuf.UnittestLite.defaultSint32ExtensionLite;
  import static com.google.protobuf.UnittestLite.defaultSint64ExtensionLite;
  import static com.google.protobuf.UnittestLite.defaultStringExtensionLite;
  import static com.google.protobuf.UnittestLite.defaultStringPieceExtensionLite;
  import static com.google.protobuf.UnittestLite.defaultUint32ExtensionLite;
  import static com.google.protobuf.UnittestLite.defaultUint64ExtensionLite;
  import static com.google.protobuf.UnittestLite.oneofBytesExtensionLite;
  import static com.google.protobuf.UnittestLite.oneofNestedMessageExtensionLite;
  import static com.google.protobuf.UnittestLite.oneofStringExtensionLite;
  import static com.google.protobuf.UnittestLite.oneofUint32ExtensionLite;
  import static com.google.protobuf.UnittestLite.optionalBoolExtensionLite;
  import static com.google.protobuf.UnittestLite.optionalBytesExtensionLite;
  import static com.google.protobuf.UnittestLite.optionalCordExtensionLite;
  import static com.google.protobuf.UnittestLite.optionalDoubleExtensionLite;
  import static com.google.protobuf.UnittestLite.optionalFixed32ExtensionLite;
  import static com.google.protobuf.UnittestLite.optionalFixed64ExtensionLite;
  import static com.google.protobuf.UnittestLite.optionalFloatExtensionLite;
  import static com.google.protobuf.UnittestLite.optionalForeignEnumExtensionLite;
  import static com.google.protobuf.UnittestLite.optionalForeignMessageExtensionLite;
  import static com.google.protobuf.UnittestLite.optionalGroupExtensionLite;
  import static com.google.protobuf.UnittestLite.optionalImportEnumExtensionLite;
  import static com.google.protobuf.UnittestLite.optionalImportMessageExtensionLite;
  import static com.google.protobuf.UnittestLite.optionalInt32ExtensionLite;
  import static com.google.protobuf.UnittestLite.optionalInt64ExtensionLite;
  import static com.google.protobuf.UnittestLite.optionalLazyMessageExtensionLite;
  import static com.google.protobuf.UnittestLite.optionalNestedEnumExtensionLite;
  import static com.google.protobuf.UnittestLite.optionalNestedMessageExtensionLite;
  import static com.google.protobuf.UnittestLite.optionalPublicImportMessageExtensionLite;
  import static com.google.protobuf.UnittestLite.optionalSfixed32ExtensionLite;
  import static com.google.protobuf.UnittestLite.optionalSfixed64ExtensionLite;
  import static com.google.protobuf.UnittestLite.optionalSint32ExtensionLite;
  import static com.google.protobuf.UnittestLite.optionalSint64ExtensionLite;
  import static com.google.protobuf.UnittestLite.optionalStringExtensionLite;
  import static com.google.protobuf.UnittestLite.optionalStringPieceExtensionLite;
  import static com.google.protobuf.UnittestLite.optionalUint32ExtensionLite;
  import static com.google.protobuf.UnittestLite.optionalUint64ExtensionLite;
  import static com.google.protobuf.UnittestLite.packedBoolExtensionLite;
  import static com.google.protobuf.UnittestLite.packedDoubleExtensionLite;
  import static com.google.protobuf.UnittestLite.packedEnumExtensionLite;
  import static com.google.protobuf.UnittestLite.packedFixed32ExtensionLite;
  import static com.google.protobuf.UnittestLite.packedFixed64ExtensionLite;
  import static com.google.protobuf.UnittestLite.packedFloatExtensionLite;
  import static com.google.protobuf.UnittestLite.packedInt32ExtensionLite;
  import static com.google.protobuf.UnittestLite.packedInt64ExtensionLite;
  import static com.google.protobuf.UnittestLite.packedSfixed32ExtensionLite;
  import static com.google.protobuf.UnittestLite.packedSfixed64ExtensionLite;
  import static com.google.protobuf.UnittestLite.packedSint32ExtensionLite;
  import static com.google.protobuf.UnittestLite.packedSint64ExtensionLite;
  import static com.google.protobuf.UnittestLite.packedUint32ExtensionLite;
  import static com.google.protobuf.UnittestLite.packedUint64ExtensionLite;
  import static com.google.protobuf.UnittestLite.repeatedBoolExtensionLite;
  import static com.google.protobuf.UnittestLite.repeatedBytesExtensionLite;
  import static com.google.protobuf.UnittestLite.repeatedCordExtensionLite;
  import static com.google.protobuf.UnittestLite.repeatedDoubleExtensionLite;
  import static com.google.protobuf.UnittestLite.repeatedFixed32ExtensionLite;
  import static com.google.protobuf.UnittestLite.repeatedFixed64ExtensionLite;
  import static com.google.protobuf.UnittestLite.repeatedFloatExtensionLite;
  import static com.google.protobuf.UnittestLite.repeatedForeignEnumExtensionLite;
  import static com.google.protobuf.UnittestLite.repeatedForeignMessageExtensionLite;
  import static com.google.protobuf.UnittestLite.repeatedGroupExtensionLite;
  import static com.google.protobuf.UnittestLite.repeatedImportEnumExtensionLite;
  import static com.google.protobuf.UnittestLite.repeatedImportMessageExtensionLite;
  import static com.google.protobuf.UnittestLite.repeatedInt32ExtensionLite;
  import static com.google.protobuf.UnittestLite.repeatedInt64ExtensionLite;
  import static com.google.protobuf.UnittestLite.repeatedLazyMessageExtensionLite;
  import static com.google.protobuf.UnittestLite.repeatedNestedEnumExtensionLite;
  import static com.google.protobuf.UnittestLite.repeatedNestedMessageExtensionLite;
  import static com.google.protobuf.UnittestLite.repeatedSfixed32ExtensionLite;
  import static com.google.protobuf.UnittestLite.repeatedSfixed64ExtensionLite;
  import static com.google.protobuf.UnittestLite.repeatedSint32ExtensionLite;
  import static com.google.protobuf.UnittestLite.repeatedSint64ExtensionLite;
  import static com.google.protobuf.UnittestLite.repeatedStringExtensionLite;
  import static com.google.protobuf.UnittestLite.repeatedStringPieceExtensionLite;
  import static com.google.protobuf.UnittestLite.repeatedUint32ExtensionLite;
  import static com.google.protobuf.UnittestLite.repeatedUint64ExtensionLite;
  import static protobuf_unittest.UnittestProto.defaultBoolExtension;
  import static protobuf_unittest.UnittestProto.defaultBytesExtension;
  import static protobuf_unittest.UnittestProto.defaultCordExtension;
  import static protobuf_unittest.UnittestProto.defaultDoubleExtension;
  import static protobuf_unittest.UnittestProto.defaultFixed32Extension;
  import static protobuf_unittest.UnittestProto.defaultFixed64Extension;
  import static protobuf_unittest.UnittestProto.defaultFloatExtension;
  import static protobuf_unittest.UnittestProto.defaultForeignEnumExtension;
  import static protobuf_unittest.UnittestProto.defaultImportEnumExtension;
  import static protobuf_unittest.UnittestProto.defaultInt32Extension;
  import static protobuf_unittest.UnittestProto.defaultInt64Extension;
  import static protobuf_unittest.UnittestProto.defaultNestedEnumExtension;
  import static protobuf_unittest.UnittestProto.defaultSfixed32Extension;
  import static protobuf_unittest.UnittestProto.defaultSfixed64Extension;
  import static protobuf_unittest.UnittestProto.defaultSint32Extension;
  import static protobuf_unittest.UnittestProto.defaultSint64Extension;
  import static protobuf_unittest.UnittestProto.defaultStringExtension;
  import static protobuf_unittest.UnittestProto.defaultStringPieceExtension;
  import static protobuf_unittest.UnittestProto.defaultUint32Extension;
  import static protobuf_unittest.UnittestProto.defaultUint64Extension;
  import static protobuf_unittest.UnittestProto.oneofBytesExtension;
  import static protobuf_unittest.UnittestProto.oneofNestedMessageExtension;
  import static protobuf_unittest.UnittestProto.oneofStringExtension;
  import static protobuf_unittest.UnittestProto.oneofUint32Extension;
  import static protobuf_unittest.UnittestProto.optionalBoolExtension;
  import static protobuf_unittest.UnittestProto.optionalBytesExtension;
  import static protobuf_unittest.UnittestProto.optionalCordExtension;
  import static protobuf_unittest.UnittestProto.optionalDoubleExtension;
  import static protobuf_unittest.UnittestProto.optionalFixed32Extension;
  import static protobuf_unittest.UnittestProto.optionalFixed64Extension;
  import static protobuf_unittest.UnittestProto.optionalFloatExtension;
  import static protobuf_unittest.UnittestProto.optionalForeignEnumExtension;
  import static protobuf_unittest.UnittestProto.optionalForeignMessageExtension;
  import static protobuf_unittest.UnittestProto.optionalGroupExtension;
  import static protobuf_unittest.UnittestProto.optionalImportEnumExtension;
  import static protobuf_unittest.UnittestProto.optionalImportMessageExtension;
  import static protobuf_unittest.UnittestProto.optionalInt32Extension;
  import static protobuf_unittest.UnittestProto.optionalInt64Extension;
  import static protobuf_unittest.UnittestProto.optionalLazyMessageExtension;
  import static protobuf_unittest.UnittestProto.optionalNestedEnumExtension;
  import static protobuf_unittest.UnittestProto.optionalNestedMessageExtension;
  import static protobuf_unittest.UnittestProto.optionalPublicImportMessageExtension;
  import static protobuf_unittest.UnittestProto.optionalSfixed32Extension;
  import static protobuf_unittest.UnittestProto.optionalSfixed64Extension;
  import static protobuf_unittest.UnittestProto.optionalSint32Extension;
  import static protobuf_unittest.UnittestProto.optionalSint64Extension;
  import static protobuf_unittest.UnittestProto.optionalStringExtension;
  import static protobuf_unittest.UnittestProto.optionalStringPieceExtension;
  import static protobuf_unittest.UnittestProto.optionalUint32Extension;
  import static protobuf_unittest.UnittestProto.optionalUint64Extension;
  import static protobuf_unittest.UnittestProto.packedBoolExtension;
  import static protobuf_unittest.UnittestProto.packedDoubleExtension;
  import static protobuf_unittest.UnittestProto.packedEnumExtension;
  import static protobuf_unittest.UnittestProto.packedFixed32Extension;
  import static protobuf_unittest.UnittestProto.packedFixed64Extension;
  import static protobuf_unittest.UnittestProto.packedFloatExtension;
  import static protobuf_unittest.UnittestProto.packedInt32Extension;
  import static protobuf_unittest.UnittestProto.packedInt64Extension;
  import static protobuf_unittest.UnittestProto.packedSfixed32Extension;
  import static protobuf_unittest.UnittestProto.packedSfixed64Extension;
  import static protobuf_unittest.UnittestProto.packedSint32Extension;
  import static protobuf_unittest.UnittestProto.packedSint64Extension;
  import static protobuf_unittest.UnittestProto.packedUint32Extension;
  import static protobuf_unittest.UnittestProto.packedUint64Extension;
  import static protobuf_unittest.UnittestProto.repeatedBoolExtension;
  import static protobuf_unittest.UnittestProto.repeatedBytesExtension;
  import static protobuf_unittest.UnittestProto.repeatedCordExtension;
  import static protobuf_unittest.UnittestProto.repeatedDoubleExtension;
  import static protobuf_unittest.UnittestProto.repeatedFixed32Extension;
  import static protobuf_unittest.UnittestProto.repeatedFixed64Extension;
  import static protobuf_unittest.UnittestProto.repeatedFloatExtension;
  import static protobuf_unittest.UnittestProto.repeatedForeignEnumExtension;
  import static protobuf_unittest.UnittestProto.repeatedForeignMessageExtension;
  import static protobuf_unittest.UnittestProto.repeatedGroupExtension;
  import static protobuf_unittest.UnittestProto.repeatedImportEnumExtension;
  import static protobuf_unittest.UnittestProto.repeatedImportMessageExtension;
  import static protobuf_unittest.UnittestProto.repeatedInt32Extension;
  import static protobuf_unittest.UnittestProto.repeatedInt64Extension;
  import static protobuf_unittest.UnittestProto.repeatedLazyMessageExtension;
  import static protobuf_unittest.UnittestProto.repeatedNestedEnumExtension;
  import static protobuf_unittest.UnittestProto.repeatedNestedMessageExtension;
  import static protobuf_unittest.UnittestProto.repeatedSfixed32Extension;
  import static protobuf_unittest.UnittestProto.repeatedSfixed64Extension;
  import static protobuf_unittest.UnittestProto.repeatedSint32Extension;
  import static protobuf_unittest.UnittestProto.repeatedSint64Extension;
  import static protobuf_unittest.UnittestProto.repeatedStringExtension;
  import static protobuf_unittest.UnittestProto.repeatedStringPieceExtension;
  import static protobuf_unittest.UnittestProto.repeatedUint32Extension;
  import static protobuf_unittest.UnittestProto.repeatedUint64Extension;
  
  import com.google.protobuf.UnittestImportLite.ImportEnumLite;
  import com.google.protobuf.UnittestLite.ForeignEnumLite;
  import com.google.protobuf.UnittestLite.TestAllExtensionsLiteOrBuilder;
  import com.google.protobuf.UnittestLite.TestAllTypesLite;
  import com.google.protobuf.UnittestLite.TestPackedExtensionsLite;
  import com.google.protobuf.test.UnittestImport.ImportEnum;
  import com.google.protobuf.test.UnittestImport.ImportMessage;
  import com.google.protobuf.test.UnittestImportPublic.PublicImportMessage;
  import protobuf_unittest.UnittestProto;
  import protobuf_unittest.UnittestProto.ForeignEnum;
  import protobuf_unittest.UnittestProto.ForeignMessage;
  import protobuf_unittest.UnittestProto.OptionalGroup_extension;
  import protobuf_unittest.UnittestProto.RepeatedGroup_extension;
  import protobuf_unittest.UnittestProto.TestAllExtensions;
  import protobuf_unittest.UnittestProto.TestAllExtensionsOrBuilder;
  import protobuf_unittest.UnittestProto.TestAllTypes;
  import protobuf_unittest.UnittestProto.TestAllTypesOrBuilder;
  import protobuf_unittest.UnittestProto.TestOneof2;
  import protobuf_unittest.UnittestProto.TestPackedExtensions;
  import protobuf_unittest.UnittestProto.TestPackedTypes;
  import protobuf_unittest.UnittestProto.TestRequired;
  import protobuf_unittest.UnittestProto.TestUnpackedTypes;
  import java.io.File;
  import java.io.IOException;
  import java.io.RandomAccessFile;
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.List;
  import java.util.logging.Handler;
  import java.util.logging.LogRecord;
  import junit.framework.Assert;
  
  /**
   * Contains methods for setting all fields of {@code TestAllTypes} to some values as well as
   * checking that all the fields are set to those values. These are useful for testing various
   * protocol message features, e.g. set all fields of a message, serialize it, parse it, and check
   * that all fields are set.
   *
   * <p>This code is not to be used outside of {@code com.google.protobuf} and subpackages.
   *
   * @author kenton@google.com Kenton Varda
   */
  public final class TestUtil {
    private TestUtil() {}
  
    public static final TestRequired TEST_REQUIRED_UNINITIALIZED =
        TestRequired.newBuilder().setA(1).buildPartial();
    public static final TestRequired TEST_REQUIRED_INITIALIZED =
        TestRequired.newBuilder().setA(1).setB(2).setC(3).build();
  
    /** Helper to convert a String to ByteString. */
    static ByteString toBytes(String str) {
      return ByteString.copyFrom(str.getBytes(Internal.UTF_8));
    }
  
    // BEGIN FULL-RUNTIME
    /** Dirties the message by resetting the momoized serialized size. */
    public static void resetMemoizedSize(AbstractMessage message) {
      message.memoizedSize = -1;
    }
    // END FULL-RUNTIME
  
    /**
     * Get a {@code TestAllTypes} with all fields set as they would be by {@link
     * #setAllFields(TestAllTypes.Builder)}.
     */
    public static TestAllTypes getAllSet() {
      TestAllTypes.Builder builder = TestAllTypes.newBuilder();
      setAllFields(builder);
      return builder.build();
    }
  
    /**
     * Get a {@code TestAllTypes.Builder} with all fields set as they would be by {@link
     * #setAllFields(TestAllTypes.Builder)}.
     */
    public static TestAllTypes.Builder getAllSetBuilder() {
      TestAllTypes.Builder builder = TestAllTypes.newBuilder();
      setAllFields(builder);
      return builder;
    }
  
    /**
     * Get a {@code TestAllExtensions} with all fields set as they would be by {@link
     * #setAllExtensions(TestAllExtensions.Builder)}.
     */
    public static TestAllExtensions getAllExtensionsSet() {
      TestAllExtensions.Builder builder = TestAllExtensions.newBuilder();
      setAllExtensions(builder);
      return builder.build();
    }
  
    public static TestPackedTypes getPackedSet() {
      TestPackedTypes.Builder builder = TestPackedTypes.newBuilder();
      setPackedFields(builder);
      return builder.build();
    }
  
    public static TestUnpackedTypes getUnpackedSet() {
      TestUnpackedTypes.Builder builder = TestUnpackedTypes.newBuilder();
      setUnpackedFields(builder);
      return builder.build();
    }
  
    public static TestPackedExtensions getPackedExtensionsSet() {
      TestPackedExtensions.Builder builder = TestPackedExtensions.newBuilder();
      setPackedExtensions(builder);
      return builder.build();
    }
  
    /** Set every field of {@code message} to the values expected by {@code assertAllFieldsSet()}. */
    public static void setAllFields(TestAllTypes.Builder message) {
      message.setOptionalInt32(101);
      message.setOptionalInt64(102);
      message.setOptionalUint32(103);
      message.setOptionalUint64(104);
      message.setOptionalSint32(105);
      message.setOptionalSint64(106);
      message.setOptionalFixed32(107);
      message.setOptionalFixed64(108);
      message.setOptionalSfixed32(109);
      message.setOptionalSfixed64(110);
      message.setOptionalFloat(111);
      message.setOptionalDouble(112);
      message.setOptionalBool(true);
      message.setOptionalString("115");
      message.setOptionalBytes(toBytes("116"));
  
      message.setOptionalGroup(TestAllTypes.OptionalGroup.newBuilder().setA(117).build());
      message.setOptionalNestedMessage(TestAllTypes.NestedMessage.newBuilder().setBb(118).build());
      message.setOptionalForeignMessage(ForeignMessage.newBuilder().setC(119).build());
      message.setOptionalImportMessage(ImportMessage.newBuilder().setD(120).build());
      message.setOptionalPublicImportMessage(PublicImportMessage.newBuilder().setE(126).build());
      message.setOptionalLazyMessage(TestAllTypes.NestedMessage.newBuilder().setBb(127).build());
  
      message.setOptionalNestedEnum(TestAllTypes.NestedEnum.BAZ);
      message.setOptionalForeignEnum(ForeignEnum.FOREIGN_BAZ);
      message.setOptionalImportEnum(ImportEnum.IMPORT_BAZ);
  
      message.setOptionalStringPiece("124");
      message.setOptionalCord("125");
  
      // -----------------------------------------------------------------
  
      message.addRepeatedInt32(201);
      message.addRepeatedInt64(202);
      message.addRepeatedUint32(203);
      message.addRepeatedUint64(204);
      message.addRepeatedSint32(205);
      message.addRepeatedSint64(206);
      message.addRepeatedFixed32(207);
      message.addRepeatedFixed64(208);
      message.addRepeatedSfixed32(209);
      message.addRepeatedSfixed64(210);
      message.addRepeatedFloat(211);
      message.addRepeatedDouble(212);
      message.addRepeatedBool(true);
      message.addRepeatedString("215");
      message.addRepeatedBytes(toBytes("216"));
  
      message.addRepeatedGroup(TestAllTypes.RepeatedGroup.newBuilder().setA(217).build());
      message.addRepeatedNestedMessage(TestAllTypes.NestedMessage.newBuilder().setBb(218).build());
      message.addRepeatedForeignMessage(ForeignMessage.newBuilder().setC(219).build());
      message.addRepeatedImportMessage(ImportMessage.newBuilder().setD(220).build());
      message.addRepeatedLazyMessage(TestAllTypes.NestedMessage.newBuilder().setBb(227).build());
  
      message.addRepeatedNestedEnum(TestAllTypes.NestedEnum.BAR);
      message.addRepeatedForeignEnum(ForeignEnum.FOREIGN_BAR);
      message.addRepeatedImportEnum(ImportEnum.IMPORT_BAR);
  
      message.addRepeatedStringPiece("224");
      message.addRepeatedCord("225");
  
      // Add a second one of each field.
      message.addRepeatedInt32(301);
      message.addRepeatedInt64(302);
      message.addRepeatedUint32(303);
      message.addRepeatedUint64(304);
      message.addRepeatedSint32(305);
      message.addRepeatedSint64(306);
      message.addRepeatedFixed32(307);
      message.addRepeatedFixed64(308);
      message.addRepeatedSfixed32(309);
      message.addRepeatedSfixed64(310);
      message.addRepeatedFloat(311);
      message.addRepeatedDouble(312);
      message.addRepeatedBool(false);
      message.addRepeatedString("315");
      message.addRepeatedBytes(toBytes("316"));
  
      message.addRepeatedGroup(TestAllTypes.RepeatedGroup.newBuilder().setA(317).build());
      message.addRepeatedNestedMessage(TestAllTypes.NestedMessage.newBuilder().setBb(318).build());
      message.addRepeatedForeignMessage(ForeignMessage.newBuilder().setC(319).build());
      message.addRepeatedImportMessage(ImportMessage.newBuilder().setD(320).build());
      message.addRepeatedLazyMessage(TestAllTypes.NestedMessage.newBuilder().setBb(327).build());
  
      message.addRepeatedNestedEnum(TestAllTypes.NestedEnum.BAZ);
      message.addRepeatedForeignEnum(ForeignEnum.FOREIGN_BAZ);
      message.addRepeatedImportEnum(ImportEnum.IMPORT_BAZ);
  
      message.addRepeatedStringPiece("324");
      message.addRepeatedCord("325");
  
      // -----------------------------------------------------------------
  
      message.setDefaultInt32(401);
      message.setDefaultInt64(402);
      message.setDefaultUint32(403);
      message.setDefaultUint64(404);
      message.setDefaultSint32(405);
      message.setDefaultSint64(406);
      message.setDefaultFixed32(407);
      message.setDefaultFixed64(408);
      message.setDefaultSfixed32(409);
      message.setDefaultSfixed64(410);
      message.setDefaultFloat(411);
      message.setDefaultDouble(412);
      message.setDefaultBool(false);
      message.setDefaultString("415");
      message.setDefaultBytes(toBytes("416"));
  
      message.setDefaultNestedEnum(TestAllTypes.NestedEnum.FOO);
      message.setDefaultForeignEnum(ForeignEnum.FOREIGN_FOO);
      message.setDefaultImportEnum(ImportEnum.IMPORT_FOO);
  
      message.setDefaultStringPiece("424");
      message.setDefaultCord("425");
  
      message.setOneofUint32(601);
      message.setOneofNestedMessage(TestAllTypes.NestedMessage.newBuilder().setBb(602).build());
      message.setOneofString("603");
      message.setOneofBytes(toBytes("604"));
    }
  
    // -------------------------------------------------------------------
  
    /**
     * Modify the repeated fields of {@code message} to contain the values expected by {@code
     * assertRepeatedFieldsModified()}.
     */
    public static void modifyRepeatedFields(TestAllTypes.Builder message) {
      message.setRepeatedInt32(1, 501);
      message.setRepeatedInt64(1, 502);
      message.setRepeatedUint32(1, 503);
      message.setRepeatedUint64(1, 504);
      message.setRepeatedSint32(1, 505);
      message.setRepeatedSint64(1, 506);
      message.setRepeatedFixed32(1, 507);
      message.setRepeatedFixed64(1, 508);
      message.setRepeatedSfixed32(1, 509);
      message.setRepeatedSfixed64(1, 510);
      message.setRepeatedFloat(1, 511);
      message.setRepeatedDouble(1, 512);
      message.setRepeatedBool(1, true);
      message.setRepeatedString(1, "515");
      message.setRepeatedBytes(1, toBytes("516"));
  
      message.setRepeatedGroup(1, TestAllTypes.RepeatedGroup.newBuilder().setA(517).build());
      message.setRepeatedNestedMessage(1, TestAllTypes.NestedMessage.newBuilder().setBb(518).build());
      message.setRepeatedForeignMessage(1, ForeignMessage.newBuilder().setC(519).build());
      message.setRepeatedImportMessage(1, ImportMessage.newBuilder().setD(520).build());
      message.setRepeatedLazyMessage(1, TestAllTypes.NestedMessage.newBuilder().setBb(527).build());
  
      message.setRepeatedNestedEnum(1, TestAllTypes.NestedEnum.FOO);
      message.setRepeatedForeignEnum(1, ForeignEnum.FOREIGN_FOO);
      message.setRepeatedImportEnum(1, ImportEnum.IMPORT_FOO);
  
      message.setRepeatedStringPiece(1, "524");
      message.setRepeatedCord(1, "525");
    }
  
    // -------------------------------------------------------------------
  
    /**
     * Assert (using {@code junit.framework.Assert}} that all fields of {@code message} are set to the
     * values assigned by {@code setAllFields}.
     */
    public static void assertAllFieldsSet(TestAllTypesOrBuilder message) {
      Assert.assertTrue(message.hasOptionalInt32());
      Assert.assertTrue(message.hasOptionalInt64());
      Assert.assertTrue(message.hasOptionalUint32());
      Assert.assertTrue(message.hasOptionalUint64());
      Assert.assertTrue(message.hasOptionalSint32());
      Assert.assertTrue(message.hasOptionalSint64());
      Assert.assertTrue(message.hasOptionalFixed32());
      Assert.assertTrue(message.hasOptionalFixed64());
      Assert.assertTrue(message.hasOptionalSfixed32());
      Assert.assertTrue(message.hasOptionalSfixed64());
      Assert.assertTrue(message.hasOptionalFloat());
      Assert.assertTrue(message.hasOptionalDouble());
      Assert.assertTrue(message.hasOptionalBool());
      Assert.assertTrue(message.hasOptionalString());
      Assert.assertTrue(message.hasOptionalBytes());
  
      Assert.assertTrue(message.hasOptionalGroup());
      Assert.assertTrue(message.hasOptionalNestedMessage());
      Assert.assertTrue(message.hasOptionalForeignMessage());
      Assert.assertTrue(message.hasOptionalImportMessage());
  
      Assert.assertTrue(message.getOptionalGroup().hasA());
      Assert.assertTrue(message.getOptionalNestedMessage().hasBb());
      Assert.assertTrue(message.getOptionalForeignMessage().hasC());
      Assert.assertTrue(message.getOptionalImportMessage().hasD());
  
      Assert.assertTrue(message.hasOptionalNestedEnum());
      Assert.assertTrue(message.hasOptionalForeignEnum());
      Assert.assertTrue(message.hasOptionalImportEnum());
  
      Assert.assertTrue(message.hasOptionalStringPiece());
      Assert.assertTrue(message.hasOptionalCord());
  
      Assert.assertEquals(101, message.getOptionalInt32());
      Assert.assertEquals(102, message.getOptionalInt64());
      Assert.assertEquals(103, message.getOptionalUint32());
      Assert.assertEquals(104, message.getOptionalUint64());
      Assert.assertEquals(105, message.getOptionalSint32());
      Assert.assertEquals(106, message.getOptionalSint64());
      Assert.assertEquals(107, message.getOptionalFixed32());
      Assert.assertEquals(108, message.getOptionalFixed64());
      Assert.assertEquals(109, message.getOptionalSfixed32());
      Assert.assertEquals(110, message.getOptionalSfixed64());
      Assert.assertEquals(111, message.getOptionalFloat(), 0.0);
      Assert.assertEquals(112, message.getOptionalDouble(), 0.0);
      Assert.assertEquals(true, message.getOptionalBool());
      Assert.assertEquals("115", message.getOptionalString());
      Assert.assertEquals(toBytes("116"), message.getOptionalBytes());
  
      Assert.assertEquals(117, message.getOptionalGroup().getA());
      Assert.assertEquals(118, message.getOptionalNestedMessage().getBb());
      Assert.assertEquals(119, message.getOptionalForeignMessage().getC());
      Assert.assertEquals(120, message.getOptionalImportMessage().getD());
      Assert.assertEquals(126, message.getOptionalPublicImportMessage().getE());
      Assert.assertEquals(127, message.getOptionalLazyMessage().getBb());
  
      Assert.assertEquals(TestAllTypes.NestedEnum.BAZ, message.getOptionalNestedEnum());
      Assert.assertEquals(ForeignEnum.FOREIGN_BAZ, message.getOptionalForeignEnum());
      Assert.assertEquals(ImportEnum.IMPORT_BAZ, message.getOptionalImportEnum());
  
      Assert.assertEquals("124", message.getOptionalStringPiece());
      Assert.assertEquals("125", message.getOptionalCord());
  
      // -----------------------------------------------------------------
  
      Assert.assertEquals(2, message.getRepeatedInt32Count());
      Assert.assertEquals(2, message.getRepeatedInt64Count());
      Assert.assertEquals(2, message.getRepeatedUint32Count());
      Assert.assertEquals(2, message.getRepeatedUint64Count());
      Assert.assertEquals(2, message.getRepeatedSint32Count());
      Assert.assertEquals(2, message.getRepeatedSint64Count());
      Assert.assertEquals(2, message.getRepeatedFixed32Count());
      Assert.assertEquals(2, message.getRepeatedFixed64Count());
      Assert.assertEquals(2, message.getRepeatedSfixed32Count());
      Assert.assertEquals(2, message.getRepeatedSfixed64Count());
      Assert.assertEquals(2, message.getRepeatedFloatCount());
      Assert.assertEquals(2, message.getRepeatedDoubleCount());
      Assert.assertEquals(2, message.getRepeatedBoolCount());
      Assert.assertEquals(2, message.getRepeatedStringCount());
      Assert.assertEquals(2, message.getRepeatedBytesCount());
  
      Assert.assertEquals(2, message.getRepeatedGroupCount());
      Assert.assertEquals(2, message.getRepeatedNestedMessageCount());
      Assert.assertEquals(2, message.getRepeatedForeignMessageCount());
      Assert.assertEquals(2, message.getRepeatedImportMessageCount());
      Assert.assertEquals(2, message.getRepeatedLazyMessageCount());
      Assert.assertEquals(2, message.getRepeatedNestedEnumCount());
      Assert.assertEquals(2, message.getRepeatedForeignEnumCount());
      Assert.assertEquals(2, message.getRepeatedImportEnumCount());
  
      Assert.assertEquals(2, message.getRepeatedStringPieceCount());
      Assert.assertEquals(2, message.getRepeatedCordCount());
  
      Assert.assertEquals(201, message.getRepeatedInt32(0));
      Assert.assertEquals(202, message.getRepeatedInt64(0));
      Assert.assertEquals(203, message.getRepeatedUint32(0));
      Assert.assertEquals(204, message.getRepeatedUint64(0));
      Assert.assertEquals(205, message.getRepeatedSint32(0));
      Assert.assertEquals(206, message.getRepeatedSint64(0));
      Assert.assertEquals(207, message.getRepeatedFixed32(0));
      Assert.assertEquals(208, message.getRepeatedFixed64(0));
      Assert.assertEquals(209, message.getRepeatedSfixed32(0));
      Assert.assertEquals(210, message.getRepeatedSfixed64(0));
      Assert.assertEquals(211, message.getRepeatedFloat(0), 0.0);
      Assert.assertEquals(212, message.getRepeatedDouble(0), 0.0);
      Assert.assertEquals(true, message.getRepeatedBool(0));
      Assert.assertEquals("215", message.getRepeatedString(0));
      Assert.assertEquals(toBytes("216"), message.getRepeatedBytes(0));
  
      Assert.assertEquals(217, message.getRepeatedGroup(0).getA());
      Assert.assertEquals(218, message.getRepeatedNestedMessage(0).getBb());
      Assert.assertEquals(219, message.getRepeatedForeignMessage(0).getC());
      Assert.assertEquals(220, message.getRepeatedImportMessage(0).getD());
      Assert.assertEquals(227, message.getRepeatedLazyMessage(0).getBb());
  
      Assert.assertEquals(TestAllTypes.NestedEnum.BAR, message.getRepeatedNestedEnum(0));
      Assert.assertEquals(ForeignEnum.FOREIGN_BAR, message.getRepeatedForeignEnum(0));
      Assert.assertEquals(ImportEnum.IMPORT_BAR, message.getRepeatedImportEnum(0));
  
      Assert.assertEquals("224", message.getRepeatedStringPiece(0));
      Assert.assertEquals("225", message.getRepeatedCord(0));
  
      Assert.assertEquals(301, message.getRepeatedInt32(1));
      Assert.assertEquals(302, message.getRepeatedInt64(1));
      Assert.assertEquals(303, message.getRepeatedUint32(1));
      Assert.assertEquals(304, message.getRepeatedUint64(1));
      Assert.assertEquals(305, message.getRepeatedSint32(1));
      Assert.assertEquals(306, message.getRepeatedSint64(1));
      Assert.assertEquals(307, message.getRepeatedFixed32(1));
      Assert.assertEquals(308, message.getRepeatedFixed64(1));
      Assert.assertEquals(309, message.getRepeatedSfixed32(1));
      Assert.assertEquals(310, message.getRepeatedSfixed64(1));
      Assert.assertEquals(311, message.getRepeatedFloat(1), 0.0);
      Assert.assertEquals(312, message.getRepeatedDouble(1), 0.0);
      Assert.assertEquals(false, message.getRepeatedBool(1));
      Assert.assertEquals("315", message.getRepeatedString(1));
      Assert.assertEquals(toBytes("316"), message.getRepeatedBytes(1));
  
      Assert.assertEquals(317, message.getRepeatedGroup(1).getA());
      Assert.assertEquals(318, message.getRepeatedNestedMessage(1).getBb());
      Assert.assertEquals(319, message.getRepeatedForeignMessage(1).getC());
      Assert.assertEquals(320, message.getRepeatedImportMessage(1).getD());
      Assert.assertEquals(327, message.getRepeatedLazyMessage(1).getBb());
  
      Assert.assertEquals(TestAllTypes.NestedEnum.BAZ, message.getRepeatedNestedEnum(1));
      Assert.assertEquals(ForeignEnum.FOREIGN_BAZ, message.getRepeatedForeignEnum(1));
      Assert.assertEquals(ImportEnum.IMPORT_BAZ, message.getRepeatedImportEnum(1));
  
      Assert.assertEquals("324", message.getRepeatedStringPiece(1));
      Assert.assertEquals("325", message.getRepeatedCord(1));
  
      // -----------------------------------------------------------------
  
      Assert.assertTrue(message.hasDefaultInt32());
      Assert.assertTrue(message.hasDefaultInt64());
      Assert.assertTrue(message.hasDefaultUint32());
      Assert.assertTrue(message.hasDefaultUint64());
      Assert.assertTrue(message.hasDefaultSint32());
      Assert.assertTrue(message.hasDefaultSint64());
      Assert.assertTrue(message.hasDefaultFixed32());
      Assert.assertTrue(message.hasDefaultFixed64());
      Assert.assertTrue(message.hasDefaultSfixed32());
      Assert.assertTrue(message.hasDefaultSfixed64());
      Assert.assertTrue(message.hasDefaultFloat());
      Assert.assertTrue(message.hasDefaultDouble());
      Assert.assertTrue(message.hasDefaultBool());
      Assert.assertTrue(message.hasDefaultString());
      Assert.assertTrue(message.hasDefaultBytes());
  
      Assert.assertTrue(message.hasDefaultNestedEnum());
      Assert.assertTrue(message.hasDefaultForeignEnum());
      Assert.assertTrue(message.hasDefaultImportEnum());
  
      Assert.assertTrue(message.hasDefaultStringPiece());
      Assert.assertTrue(message.hasDefaultCord());
  
      Assert.assertEquals(401, message.getDefaultInt32());
      Assert.assertEquals(402, message.getDefaultInt64());
      Assert.assertEquals(403, message.getDefaultUint32());
      Assert.assertEquals(404, message.getDefaultUint64());
      Assert.assertEquals(405, message.getDefaultSint32());
      Assert.assertEquals(406, message.getDefaultSint64());
      Assert.assertEquals(407, message.getDefaultFixed32());
      Assert.assertEquals(408, message.getDefaultFixed64());
      Assert.assertEquals(409, message.getDefaultSfixed32());
      Assert.assertEquals(410, message.getDefaultSfixed64());
      Assert.assertEquals(411, message.getDefaultFloat(), 0.0);
      Assert.assertEquals(412, message.getDefaultDouble(), 0.0);
      Assert.assertEquals(false, message.getDefaultBool());
      Assert.assertEquals("415", message.getDefaultString());
      Assert.assertEquals(toBytes("416"), message.getDefaultBytes());
  
      Assert.assertEquals(TestAllTypes.NestedEnum.FOO, message.getDefaultNestedEnum());
      Assert.assertEquals(ForeignEnum.FOREIGN_FOO, message.getDefaultForeignEnum());
      Assert.assertEquals(ImportEnum.IMPORT_FOO, message.getDefaultImportEnum());
  
      Assert.assertEquals("424", message.getDefaultStringPiece());
      Assert.assertEquals("425", message.getDefaultCord());
  
      Assert.assertEquals(TestAllTypes.OneofFieldCase.ONEOF_BYTES, message.getOneofFieldCase());
      Assert.assertFalse(message.hasOneofUint32());
      Assert.assertFalse(message.hasOneofNestedMessage());
      Assert.assertFalse(message.hasOneofString());
      Assert.assertTrue(message.hasOneofBytes());
  
      Assert.assertEquals(toBytes("604"), message.getOneofBytes());
    }
  
    // -------------------------------------------------------------------
    /**
     * Assert (using {@code junit.framework.Assert}} that all fields of {@code message} are cleared,
     * and that getting the fields returns their default values.
     */
    public static void assertClear(TestAllTypesOrBuilder message) {
      // hasBlah() should initially be false for all optional fields.
      Assert.assertFalse(message.hasOptionalInt32());
      Assert.assertFalse(message.hasOptionalInt64());
      Assert.assertFalse(message.hasOptionalUint32());
      Assert.assertFalse(message.hasOptionalUint64());
      Assert.assertFalse(message.hasOptionalSint32());
      Assert.assertFalse(message.hasOptionalSint64());
      Assert.assertFalse(message.hasOptionalFixed32());
      Assert.assertFalse(message.hasOptionalFixed64());
      Assert.assertFalse(message.hasOptionalSfixed32());
      Assert.assertFalse(message.hasOptionalSfixed64());
      Assert.assertFalse(message.hasOptionalFloat());
      Assert.assertFalse(message.hasOptionalDouble());
      Assert.assertFalse(message.hasOptionalBool());
      Assert.assertFalse(message.hasOptionalString());
      Assert.assertFalse(message.hasOptionalBytes());
  
      Assert.assertFalse(message.hasOptionalGroup());
      Assert.assertFalse(message.hasOptionalNestedMessage());
      Assert.assertFalse(message.hasOptionalForeignMessage());
      Assert.assertFalse(message.hasOptionalImportMessage());
  
      Assert.assertFalse(message.hasOptionalNestedEnum());
      Assert.assertFalse(message.hasOptionalForeignEnum());
      Assert.assertFalse(message.hasOptionalImportEnum());
  
      Assert.assertFalse(message.hasOptionalStringPiece());
      Assert.assertFalse(message.hasOptionalCord());
  
      // Optional fields without defaults are set to zero or something like it.
      Assert.assertEquals(0, message.getOptionalInt32());
      Assert.assertEquals(0, message.getOptionalInt64());
      Assert.assertEquals(0, message.getOptionalUint32());
      Assert.assertEquals(0, message.getOptionalUint64());
      Assert.assertEquals(0, message.getOptionalSint32());
      Assert.assertEquals(0, message.getOptionalSint64());
      Assert.assertEquals(0, message.getOptionalFixed32());
      Assert.assertEquals(0, message.getOptionalFixed64());
      Assert.assertEquals(0, message.getOptionalSfixed32());
      Assert.assertEquals(0, message.getOptionalSfixed64());
      Assert.assertEquals(0, message.getOptionalFloat(), 0.0);
      Assert.assertEquals(0, message.getOptionalDouble(), 0.0);
      Assert.assertEquals(false, message.getOptionalBool());
      Assert.assertEquals("", message.getOptionalString());
      Assert.assertEquals(ByteString.EMPTY, message.getOptionalBytes());
  
      // Embedded messages should also be clear.
      Assert.assertFalse(message.getOptionalGroup().hasA());
      Assert.assertFalse(message.getOptionalNestedMessage().hasBb());
      Assert.assertFalse(message.getOptionalForeignMessage().hasC());
      Assert.assertFalse(message.getOptionalImportMessage().hasD());
      Assert.assertFalse(message.getOptionalPublicImportMessage().hasE());
      Assert.assertFalse(message.getOptionalLazyMessage().hasBb());
  
      Assert.assertEquals(0, message.getOptionalGroup().getA());
      Assert.assertEquals(0, message.getOptionalNestedMessage().getBb());
      Assert.assertEquals(0, message.getOptionalForeignMessage().getC());
      Assert.assertEquals(0, message.getOptionalImportMessage().getD());
      Assert.assertEquals(0, message.getOptionalPublicImportMessage().getE());
      Assert.assertEquals(0, message.getOptionalLazyMessage().getBb());
  
      // Enums without defaults are set to the first value in the enum.
      Assert.assertEquals(TestAllTypes.NestedEnum.FOO, message.getOptionalNestedEnum());
      Assert.assertEquals(ForeignEnum.FOREIGN_FOO, message.getOptionalForeignEnum());
      Assert.assertEquals(ImportEnum.IMPORT_FOO, message.getOptionalImportEnum());
  
      Assert.assertEquals("", message.getOptionalStringPiece());
      Assert.assertEquals("", message.getOptionalCord());
  
      // Repeated fields are empty.
      Assert.assertEquals(0, message.getRepeatedInt32Count());
      Assert.assertEquals(0, message.getRepeatedInt64Count());
      Assert.assertEquals(0, message.getRepeatedUint32Count());
      Assert.assertEquals(0, message.getRepeatedUint64Count());
      Assert.assertEquals(0, message.getRepeatedSint32Count());
      Assert.assertEquals(0, message.getRepeatedSint64Count());
      Assert.assertEquals(0, message.getRepeatedFixed32Count());
      Assert.assertEquals(0, message.getRepeatedFixed64Count());
      Assert.assertEquals(0, message.getRepeatedSfixed32Count());
      Assert.assertEquals(0, message.getRepeatedSfixed64Count());
      Assert.assertEquals(0, message.getRepeatedFloatCount());
      Assert.assertEquals(0, message.getRepeatedDoubleCount());
      Assert.assertEquals(0, message.getRepeatedBoolCount());
      Assert.assertEquals(0, message.getRepeatedStringCount());
      Assert.assertEquals(0, message.getRepeatedBytesCount());
  
      Assert.assertEquals(0, message.getRepeatedGroupCount());
      Assert.assertEquals(0, message.getRepeatedNestedMessageCount());
      Assert.assertEquals(0, message.getRepeatedForeignMessageCount());
      Assert.assertEquals(0, message.getRepeatedImportMessageCount());
      Assert.assertEquals(0, message.getRepeatedLazyMessageCount());
      Assert.assertEquals(0, message.getRepeatedNestedEnumCount());
      Assert.assertEquals(0, message.getRepeatedForeignEnumCount());
      Assert.assertEquals(0, message.getRepeatedImportEnumCount());
  
      Assert.assertEquals(0, message.getRepeatedStringPieceCount());
      Assert.assertEquals(0, message.getRepeatedCordCount());
  
      // hasBlah() should also be false for all default fields.
      Assert.assertFalse(message.hasDefaultInt32());
      Assert.assertFalse(message.hasDefaultInt64());
      Assert.assertFalse(message.hasDefaultUint32());
      Assert.assertFalse(message.hasDefaultUint64());
      Assert.assertFalse(message.hasDefaultSint32());
      Assert.assertFalse(message.hasDefaultSint64());
      Assert.assertFalse(message.hasDefaultFixed32());
      Assert.assertFalse(message.hasDefaultFixed64());
      Assert.assertFalse(message.hasDefaultSfixed32());
      Assert.assertFalse(message.hasDefaultSfixed64());
      Assert.assertFalse(message.hasDefaultFloat());
      Assert.assertFalse(message.hasDefaultDouble());
      Assert.assertFalse(message.hasDefaultBool());
      Assert.assertFalse(message.hasDefaultString());
      Assert.assertFalse(message.hasDefaultBytes());
  
      Assert.assertFalse(message.hasDefaultNestedEnum());
      Assert.assertFalse(message.hasDefaultForeignEnum());
      Assert.assertFalse(message.hasDefaultImportEnum());
  
      Assert.assertFalse(message.hasDefaultStringPiece());
      Assert.assertFalse(message.hasDefaultCord());
  
      // Fields with defaults have their default values (duh).
      Assert.assertEquals(41, message.getDefaultInt32());
      Assert.assertEquals(42, message.getDefaultInt64());
      Assert.assertEquals(43, message.getDefaultUint32());
      Assert.assertEquals(44, message.getDefaultUint64());
      Assert.assertEquals(-45, message.getDefaultSint32());
      Assert.assertEquals(46, message.getDefaultSint64());
      Assert.assertEquals(47, message.getDefaultFixed32());
      Assert.assertEquals(48, message.getDefaultFixed64());
      Assert.assertEquals(49, message.getDefaultSfixed32());
      Assert.assertEquals(-50, message.getDefaultSfixed64());
      Assert.assertEquals(51.5, message.getDefaultFloat(), 0.0);
      Assert.assertEquals(52e3, message.getDefaultDouble(), 0.0);
      Assert.assertEquals(true, message.getDefaultBool());
      Assert.assertEquals("hello", message.getDefaultString());
      Assert.assertEquals(toBytes("world"), message.getDefaultBytes());
  
      Assert.assertEquals(TestAllTypes.NestedEnum.BAR, message.getDefaultNestedEnum());
      Assert.assertEquals(ForeignEnum.FOREIGN_BAR, message.getDefaultForeignEnum());
      Assert.assertEquals(ImportEnum.IMPORT_BAR, message.getDefaultImportEnum());
  
      Assert.assertEquals("abc", message.getDefaultStringPiece());
      Assert.assertEquals("123", message.getDefaultCord());
  
      Assert.assertFalse(message.hasOneofUint32());
      Assert.assertFalse(message.hasOneofNestedMessage());
      Assert.assertFalse(message.hasOneofString());
      Assert.assertFalse(message.hasOneofBytes());
    }
  
    // -------------------------------------------------------------------
  
    /**
     * Assert (using {@code junit.framework.Assert}} that all fields of {@code message} are set to the
     * values assigned by {@code setAllFields} followed by {@code modifyRepeatedFields}.
     */
    public static void assertRepeatedFieldsModified(TestAllTypesOrBuilder message) {
      // ModifyRepeatedFields only sets the second repeated element of each
      // field.  In addition to verifying this, we also verify that the first
      // element and size were *not* modified.
      Assert.assertEquals(2, message.getRepeatedInt32Count());
      Assert.assertEquals(2, message.getRepeatedInt64Count());
      Assert.assertEquals(2, message.getRepeatedUint32Count());
      Assert.assertEquals(2, message.getRepeatedUint64Count());
      Assert.assertEquals(2, message.getRepeatedSint32Count());
      Assert.assertEquals(2, message.getRepeatedSint64Count());
      Assert.assertEquals(2, message.getRepeatedFixed32Count());
      Assert.assertEquals(2, message.getRepeatedFixed64Count());
      Assert.assertEquals(2, message.getRepeatedSfixed32Count());
      Assert.assertEquals(2, message.getRepeatedSfixed64Count());
      Assert.assertEquals(2, message.getRepeatedFloatCount());
      Assert.assertEquals(2, message.getRepeatedDoubleCount());
      Assert.assertEquals(2, message.getRepeatedBoolCount());
      Assert.assertEquals(2, message.getRepeatedStringCount());
      Assert.assertEquals(2, message.getRepeatedBytesCount());
  
      Assert.assertEquals(2, message.getRepeatedGroupCount());
      Assert.assertEquals(2, message.getRepeatedNestedMessageCount());
      Assert.assertEquals(2, message.getRepeatedForeignMessageCount());
      Assert.assertEquals(2, message.getRepeatedImportMessageCount());
      Assert.assertEquals(2, message.getRepeatedLazyMessageCount());
      Assert.assertEquals(2, message.getRepeatedNestedEnumCount());
      Assert.assertEquals(2, message.getRepeatedForeignEnumCount());
      Assert.assertEquals(2, message.getRepeatedImportEnumCount());
  
      Assert.assertEquals(2, message.getRepeatedStringPieceCount());
      Assert.assertEquals(2, message.getRepeatedCordCount());
  
      Assert.assertEquals(201, message.getRepeatedInt32(0));
      Assert.assertEquals(202L, message.getRepeatedInt64(0));
      Assert.assertEquals(203, message.getRepeatedUint32(0));
      Assert.assertEquals(204L, message.getRepeatedUint64(0));
      Assert.assertEquals(205, message.getRepeatedSint32(0));
      Assert.assertEquals(206L, message.getRepeatedSint64(0));
      Assert.assertEquals(207, message.getRepeatedFixed32(0));
      Assert.assertEquals(208L, message.getRepeatedFixed64(0));
      Assert.assertEquals(209, message.getRepeatedSfixed32(0));
      Assert.assertEquals(210L, message.getRepeatedSfixed64(0));
      Assert.assertEquals(211F, message.getRepeatedFloat(0));
      Assert.assertEquals(212D, message.getRepeatedDouble(0));
      Assert.assertEquals(true, message.getRepeatedBool(0));
      Assert.assertEquals("215", message.getRepeatedString(0));
      Assert.assertEquals(toBytes("216"), message.getRepeatedBytes(0));
  
      Assert.assertEquals(217, message.getRepeatedGroup(0).getA());
      Assert.assertEquals(218, message.getRepeatedNestedMessage(0).getBb());
      Assert.assertEquals(219, message.getRepeatedForeignMessage(0).getC());
      Assert.assertEquals(220, message.getRepeatedImportMessage(0).getD());
      Assert.assertEquals(227, message.getRepeatedLazyMessage(0).getBb());
  
      Assert.assertEquals(TestAllTypes.NestedEnum.BAR, message.getRepeatedNestedEnum(0));
      Assert.assertEquals(ForeignEnum.FOREIGN_BAR, message.getRepeatedForeignEnum(0));
      Assert.assertEquals(ImportEnum.IMPORT_BAR, message.getRepeatedImportEnum(0));
  
      Assert.assertEquals("224", message.getRepeatedStringPiece(0));
      Assert.assertEquals("225", message.getRepeatedCord(0));
  
      // Actually verify the second (modified) elements now.
      Assert.assertEquals(501, message.getRepeatedInt32(1));
      Assert.assertEquals(502L, message.getRepeatedInt64(1));
      Assert.assertEquals(503, message.getRepeatedUint32(1));
      Assert.assertEquals(504L, message.getRepeatedUint64(1));
      Assert.assertEquals(505, message.getRepeatedSint32(1));
      Assert.assertEquals(506L, message.getRepeatedSint64(1));
      Assert.assertEquals(507, message.getRepeatedFixed32(1));
      Assert.assertEquals(508L, message.getRepeatedFixed64(1));
      Assert.assertEquals(509, message.getRepeatedSfixed32(1));
      Assert.assertEquals(510L, message.getRepeatedSfixed64(1));
      Assert.assertEquals(511F, message.getRepeatedFloat(1));
      Assert.assertEquals(512D, message.getRepeatedDouble(1));
      Assert.assertEquals(true, message.getRepeatedBool(1));
      Assert.assertEquals("515", message.getRepeatedString(1));
      Assert.assertEquals(toBytes("516"), message.getRepeatedBytes(1));
  
      Assert.assertEquals(517, message.getRepeatedGroup(1).getA());
      Assert.assertEquals(518, message.getRepeatedNestedMessage(1).getBb());
      Assert.assertEquals(519, message.getRepeatedForeignMessage(1).getC());
      Assert.assertEquals(520, message.getRepeatedImportMessage(1).getD());
      Assert.assertEquals(527, message.getRepeatedLazyMessage(1).getBb());
  
      Assert.assertEquals(TestAllTypes.NestedEnum.FOO, message.getRepeatedNestedEnum(1));
      Assert.assertEquals(ForeignEnum.FOREIGN_FOO, message.getRepeatedForeignEnum(1));
      Assert.assertEquals(ImportEnum.IMPORT_FOO, message.getRepeatedImportEnum(1));
  
      Assert.assertEquals("524", message.getRepeatedStringPiece(1));
      Assert.assertEquals("525", message.getRepeatedCord(1));
    }
  
    /** Set every field of {@code message} to a unique value. */
    public static void setPackedFields(TestPackedTypes.Builder message) {
      message.addPackedInt32(601);
      message.addPackedInt64(602);
      message.addPackedUint32(603);
      message.addPackedUint64(604);
      message.addPackedSint32(605);
      message.addPackedSint64(606);
      message.addPackedFixed32(607);
      message.addPackedFixed64(608);
      message.addPackedSfixed32(609);
      message.addPackedSfixed64(610);
      message.addPackedFloat(611);
      message.addPackedDouble(612);
      message.addPackedBool(true);
      message.addPackedEnum(ForeignEnum.FOREIGN_BAR);
      // Add a second one of each field.
      message.addPackedInt32(701);
      message.addPackedInt64(702);
      message.addPackedUint32(703);
      message.addPackedUint64(704);
      message.addPackedSint32(705);
      message.addPackedSint64(706);
      message.addPackedFixed32(707);
      message.addPackedFixed64(708);
      message.addPackedSfixed32(709);
      message.addPackedSfixed64(710);
      message.addPackedFloat(711);
      message.addPackedDouble(712);
      message.addPackedBool(false);
      message.addPackedEnum(ForeignEnum.FOREIGN_BAZ);
    }
  
    /**
     * Set every field of {@code message} to a unique value. Must correspond with the values applied
     * by {@code setPackedFields}.
     */
    public static void setUnpackedFields(TestUnpackedTypes.Builder message) {
      message.addUnpackedInt32(601);
      message.addUnpackedInt64(602);
      message.addUnpackedUint32(603);
      message.addUnpackedUint64(604);
      message.addUnpackedSint32(605);
      message.addUnpackedSint64(606);
      message.addUnpackedFixed32(607);
      message.addUnpackedFixed64(608);
      message.addUnpackedSfixed32(609);
      message.addUnpackedSfixed64(610);
      message.addUnpackedFloat(611);
      message.addUnpackedDouble(612);
      message.addUnpackedBool(true);
      message.addUnpackedEnum(ForeignEnum.FOREIGN_BAR);
      // Add a second one of each field.
      message.addUnpackedInt32(701);
      message.addUnpackedInt64(702);
      message.addUnpackedUint32(703);
      message.addUnpackedUint64(704);
      message.addUnpackedSint32(705);
      message.addUnpackedSint64(706);
      message.addUnpackedFixed32(707);
      message.addUnpackedFixed64(708);
      message.addUnpackedSfixed32(709);
      message.addUnpackedSfixed64(710);
      message.addUnpackedFloat(711);
      message.addUnpackedDouble(712);
      message.addUnpackedBool(false);
      message.addUnpackedEnum(ForeignEnum.FOREIGN_BAZ);
    }
  
    /**
     * Assert (using {@code junit.framework.Assert}} that all fields of {@code message} are set to the
     * values assigned by {@code setPackedFields}.
     */
    public static void assertPackedFieldsSet(TestPackedTypes message) {
      Assert.assertEquals(2, message.getPackedInt32Count());
      Assert.assertEquals(2, message.getPackedInt64Count());
      Assert.assertEquals(2, message.getPackedUint32Count());
      Assert.assertEquals(2, message.getPackedUint64Count());
      Assert.assertEquals(2, message.getPackedSint32Count());
      Assert.assertEquals(2, message.getPackedSint64Count());
      Assert.assertEquals(2, message.getPackedFixed32Count());
      Assert.assertEquals(2, message.getPackedFixed64Count());
      Assert.assertEquals(2, message.getPackedSfixed32Count());
      Assert.assertEquals(2, message.getPackedSfixed64Count());
      Assert.assertEquals(2, message.getPackedFloatCount());
      Assert.assertEquals(2, message.getPackedDoubleCount());
      Assert.assertEquals(2, message.getPackedBoolCount());
      Assert.assertEquals(2, message.getPackedEnumCount());
      Assert.assertEquals(601, message.getPackedInt32(0));
      Assert.assertEquals(602, message.getPackedInt64(0));
      Assert.assertEquals(603, message.getPackedUint32(0));
      Assert.assertEquals(604, message.getPackedUint64(0));
      Assert.assertEquals(605, message.getPackedSint32(0));
      Assert.assertEquals(606, message.getPackedSint64(0));
      Assert.assertEquals(607, message.getPackedFixed32(0));
      Assert.assertEquals(608, message.getPackedFixed64(0));
      Assert.assertEquals(609, message.getPackedSfixed32(0));
      Assert.assertEquals(610, message.getPackedSfixed64(0));
      Assert.assertEquals(611, message.getPackedFloat(0), 0.0);
      Assert.assertEquals(612, message.getPackedDouble(0), 0.0);
      Assert.assertEquals(true, message.getPackedBool(0));
      Assert.assertEquals(ForeignEnum.FOREIGN_BAR, message.getPackedEnum(0));
      Assert.assertEquals(701, message.getPackedInt32(1));
      Assert.assertEquals(702, message.getPackedInt64(1));
      Assert.assertEquals(703, message.getPackedUint32(1));
      Assert.assertEquals(704, message.getPackedUint64(1));
      Assert.assertEquals(705, message.getPackedSint32(1));
      Assert.assertEquals(706, message.getPackedSint64(1));
      Assert.assertEquals(707, message.getPackedFixed32(1));
      Assert.assertEquals(708, message.getPackedFixed64(1));
      Assert.assertEquals(709, message.getPackedSfixed32(1));
      Assert.assertEquals(710, message.getPackedSfixed64(1));
      Assert.assertEquals(711, message.getPackedFloat(1), 0.0);
      Assert.assertEquals(712, message.getPackedDouble(1), 0.0);
      Assert.assertEquals(false, message.getPackedBool(1));
      Assert.assertEquals(ForeignEnum.FOREIGN_BAZ, message.getPackedEnum(1));
    }
  
    /**
     * Assert (using {@code junit.framework.Assert}} that all fields of {@code message} are set to the
     * values assigned by {@code setUnpackedFields}.
     */
    public static void assertUnpackedFieldsSet(TestUnpackedTypes message) {
      Assert.assertEquals(2, message.getUnpackedInt32Count());
      Assert.assertEquals(2, message.getUnpackedInt64Count());
      Assert.assertEquals(2, message.getUnpackedUint32Count());
      Assert.assertEquals(2, message.getUnpackedUint64Count());
      Assert.assertEquals(2, message.getUnpackedSint32Count());
      Assert.assertEquals(2, message.getUnpackedSint64Count());
      Assert.assertEquals(2, message.getUnpackedFixed32Count());
      Assert.assertEquals(2, message.getUnpackedFixed64Count());
      Assert.assertEquals(2, message.getUnpackedSfixed32Count());
      Assert.assertEquals(2, message.getUnpackedSfixed64Count());
      Assert.assertEquals(2, message.getUnpackedFloatCount());
      Assert.assertEquals(2, message.getUnpackedDoubleCount());
      Assert.assertEquals(2, message.getUnpackedBoolCount());
      Assert.assertEquals(2, message.getUnpackedEnumCount());
      Assert.assertEquals(601, message.getUnpackedInt32(0));
      Assert.assertEquals(602, message.getUnpackedInt64(0));
      Assert.assertEquals(603, message.getUnpackedUint32(0));
      Assert.assertEquals(604, message.getUnpackedUint64(0));
      Assert.assertEquals(605, message.getUnpackedSint32(0));
      Assert.assertEquals(606, message.getUnpackedSint64(0));
      Assert.assertEquals(607, message.getUnpackedFixed32(0));
      Assert.assertEquals(608, message.getUnpackedFixed64(0));
      Assert.assertEquals(609, message.getUnpackedSfixed32(0));
      Assert.assertEquals(610, message.getUnpackedSfixed64(0));
      Assert.assertEquals(611, message.getUnpackedFloat(0), 0.0);
      Assert.assertEquals(612, message.getUnpackedDouble(0), 0.0);
      Assert.assertEquals(true, message.getUnpackedBool(0));
      Assert.assertEquals(ForeignEnum.FOREIGN_BAR, message.getUnpackedEnum(0));
      Assert.assertEquals(701, message.getUnpackedInt32(1));
      Assert.assertEquals(702, message.getUnpackedInt64(1));
      Assert.assertEquals(703, message.getUnpackedUint32(1));
      Assert.assertEquals(704, message.getUnpackedUint64(1));
      Assert.assertEquals(705, message.getUnpackedSint32(1));
      Assert.assertEquals(706, message.getUnpackedSint64(1));
      Assert.assertEquals(707, message.getUnpackedFixed32(1));
      Assert.assertEquals(708, message.getUnpackedFixed64(1));
      Assert.assertEquals(709, message.getUnpackedSfixed32(1));
      Assert.assertEquals(710, message.getUnpackedSfixed64(1));
      Assert.assertEquals(711, message.getUnpackedFloat(1), 0.0);
      Assert.assertEquals(712, message.getUnpackedDouble(1), 0.0);
      Assert.assertEquals(false, message.getUnpackedBool(1));
      Assert.assertEquals(ForeignEnum.FOREIGN_BAZ, message.getUnpackedEnum(1));
    }
  
    // ===================================================================
    // Like above, but for extensions
  
    // Java gets confused with things like assertEquals(int, Integer):  it can't
    // decide whether to call assertEquals(int, int) or assertEquals(Object,
    // Object).  So we define these methods to help it.
    private static void assertEqualsExactType(int a, int b) {
      Assert.assertEquals(a, b);
    }
  
    private static void assertEqualsExactType(long a, long b) {
      Assert.assertEquals(a, b);
    }
  
    private static void assertEqualsExactType(float a, float b) {
      Assert.assertEquals(a, b, 0.0);
    }
  
    private static void assertEqualsExactType(double a, double b) {
      Assert.assertEquals(a, b, 0.0);
    }
  
    private static void assertEqualsExactType(boolean a, boolean b) {
      Assert.assertEquals(a, b);
    }
  
    private static void assertEqualsExactType(String a, String b) {
      Assert.assertEquals(a, b);
    }
  
    private static void assertEqualsExactType(ByteString a, ByteString b) {
      Assert.assertEquals(a, b);
    }
  
    private static void assertEqualsExactType(TestAllTypes.NestedEnum a, TestAllTypes.NestedEnum b) {
      Assert.assertEquals(a, b);
    }
  
    private static void assertEqualsExactType(ForeignEnum a, ForeignEnum b) {
      Assert.assertEquals(a, b);
    }
  
    private static void assertEqualsExactType(ImportEnum a, ImportEnum b) {
      Assert.assertEquals(a, b);
    }
  
    private static void assertEqualsExactType(
        TestAllTypesLite.NestedEnum a, TestAllTypesLite.NestedEnum b) {
      Assert.assertEquals(a, b);
    }
  
    private static void assertEqualsExactType(ForeignEnumLite a, ForeignEnumLite b) {
      Assert.assertEquals(a, b);
    }
  
    private static void assertEqualsExactType(ImportEnumLite a, ImportEnumLite b) {
      Assert.assertEquals(a, b);
    }
  
    /**
     * Get an unmodifiable {@link ExtensionRegistry} containing all the extensions of {@code
     * TestAllExtensions}.
     */
    public static ExtensionRegistryLite getExtensionRegistry() {
      ExtensionRegistryLite registry = ExtensionRegistryLite.newInstance();
      registerAllExtensions(registry);
      return registry.getUnmodifiable();
    }
  
    // BEGIN FULL-RUNTIME
    /**
     * Get an unmodifiable {@link ExtensionRegistry} containing all the extensions of {@code
     * TestAllExtensions}.
     */
    public static ExtensionRegistry getFullExtensionRegistry() {
      ExtensionRegistry registry = ExtensionRegistry.newInstance();
      registerAllExtensions(registry);
      return registry.getUnmodifiable();
    }
    // END FULL-RUNTIME
  
    /**
     * Register all of {@code TestAllExtensions}'s extensions with the given {@link
     * ExtensionRegistry}.
     */
    public static void registerAllExtensions(ExtensionRegistryLite registry) {
      UnittestProto.registerAllExtensions(registry);
      TestUtilLite.registerAllExtensionsLite(registry);
    }
  
    /**
     * Set every field of {@code message} to the values expected by {@code assertAllExtensionsSet()}.
     */
    public static void setAllExtensions(TestAllExtensions.Builder message) {
      message.setExtension(optionalInt32Extension, 101);
      message.setExtension(optionalInt64Extension, 102L);
      message.setExtension(optionalUint32Extension, 103);
      message.setExtension(optionalUint64Extension, 104L);
      message.setExtension(optionalSint32Extension, 105);
      message.setExtension(optionalSint64Extension, 106L);
      message.setExtension(optionalFixed32Extension, 107);
      message.setExtension(optionalFixed64Extension, 108L);
      message.setExtension(optionalSfixed32Extension, 109);
      message.setExtension(optionalSfixed64Extension, 110L);
      message.setExtension(optionalFloatExtension, 111F);
      message.setExtension(optionalDoubleExtension, 112D);
      message.setExtension(optionalBoolExtension, true);
      message.setExtension(optionalStringExtension, "115");
      message.setExtension(optionalBytesExtension, toBytes("116"));
  
      message.setExtension(
          optionalGroupExtension, OptionalGroup_extension.newBuilder().setA(117).build());
      message.setExtension(
          optionalNestedMessageExtension, TestAllTypes.NestedMessage.newBuilder().setBb(118).build());
      message.setExtension(
          optionalForeignMessageExtension, ForeignMessage.newBuilder().setC(119).build());
      message.setExtension(
          optionalImportMessageExtension, ImportMessage.newBuilder().setD(120).build());
      message.setExtension(
          optionalPublicImportMessageExtension, PublicImportMessage.newBuilder().setE(126).build());
      message.setExtension(
          optionalLazyMessageExtension, TestAllTypes.NestedMessage.newBuilder().setBb(127).build());
  
      message.setExtension(optionalNestedEnumExtension, TestAllTypes.NestedEnum.BAZ);
      message.setExtension(optionalForeignEnumExtension, ForeignEnum.FOREIGN_BAZ);
      message.setExtension(optionalImportEnumExtension, ImportEnum.IMPORT_BAZ);
  
      message.setExtension(optionalStringPieceExtension, "124");
      message.setExtension(optionalCordExtension, "125");
  
      // -----------------------------------------------------------------
  
      message.addExtension(repeatedInt32Extension, 201);
      message.addExtension(repeatedInt64Extension, 202L);
      message.addExtension(repeatedUint32Extension, 203);
      message.addExtension(repeatedUint64Extension, 204L);
      message.addExtension(repeatedSint32Extension, 205);
      message.addExtension(repeatedSint64Extension, 206L);
      message.addExtension(repeatedFixed32Extension, 207);
      message.addExtension(repeatedFixed64Extension, 208L);
      message.addExtension(repeatedSfixed32Extension, 209);
      message.addExtension(repeatedSfixed64Extension, 210L);
      message.addExtension(repeatedFloatExtension, 211F);
      message.addExtension(repeatedDoubleExtension, 212D);
      message.addExtension(repeatedBoolExtension, true);
      message.addExtension(repeatedStringExtension, "215");
      message.addExtension(repeatedBytesExtension, toBytes("216"));
  
      message.addExtension(
          repeatedGroupExtension, RepeatedGroup_extension.newBuilder().setA(217).build());
      message.addExtension(
          repeatedNestedMessageExtension, TestAllTypes.NestedMessage.newBuilder().setBb(218).build());
      message.addExtension(
          repeatedForeignMessageExtension, ForeignMessage.newBuilder().setC(219).build());
      message.addExtension(
          repeatedImportMessageExtension, ImportMessage.newBuilder().setD(220).build());
      message.addExtension(
          repeatedLazyMessageExtension, TestAllTypes.NestedMessage.newBuilder().setBb(227).build());
  
      message.addExtension(repeatedNestedEnumExtension, TestAllTypes.NestedEnum.BAR);
      message.addExtension(repeatedForeignEnumExtension, ForeignEnum.FOREIGN_BAR);
      message.addExtension(repeatedImportEnumExtension, ImportEnum.IMPORT_BAR);
  
      message.addExtension(repeatedStringPieceExtension, "224");
      message.addExtension(repeatedCordExtension, "225");
  
      // Add a second one of each field.
      message.addExtension(repeatedInt32Extension, 301);
      message.addExtension(repeatedInt64Extension, 302L);
      message.addExtension(repeatedUint32Extension, 303);
      message.addExtension(repeatedUint64Extension, 304L);
      message.addExtension(repeatedSint32Extension, 305);
      message.addExtension(repeatedSint64Extension, 306L);
      message.addExtension(repeatedFixed32Extension, 307);
      message.addExtension(repeatedFixed64Extension, 308L);
      message.addExtension(repeatedSfixed32Extension, 309);
      message.addExtension(repeatedSfixed64Extension, 310L);
      message.addExtension(repeatedFloatExtension, 311F);
      message.addExtension(repeatedDoubleExtension, 312D);
      message.addExtension(repeatedBoolExtension, false);
      message.addExtension(repeatedStringExtension, "315");
      message.addExtension(repeatedBytesExtension, toBytes("316"));
  
      message.addExtension(
          repeatedGroupExtension, RepeatedGroup_extension.newBuilder().setA(317).build());
      message.addExtension(
          repeatedNestedMessageExtension, TestAllTypes.NestedMessage.newBuilder().setBb(318).build());
      message.addExtension(
          repeatedForeignMessageExtension, ForeignMessage.newBuilder().setC(319).build());
      message.addExtension(
          repeatedImportMessageExtension, ImportMessage.newBuilder().setD(320).build());
      message.addExtension(
          repeatedLazyMessageExtension, TestAllTypes.NestedMessage.newBuilder().setBb(327).build());
  
      message.addExtension(repeatedNestedEnumExtension, TestAllTypes.NestedEnum.BAZ);
      message.addExtension(repeatedForeignEnumExtension, ForeignEnum.FOREIGN_BAZ);
      message.addExtension(repeatedImportEnumExtension, ImportEnum.IMPORT_BAZ);
  
      message.addExtension(repeatedStringPieceExtension, "324");
      message.addExtension(repeatedCordExtension, "325");
  
      // -----------------------------------------------------------------
  
      message.setExtension(defaultInt32Extension, 401);
      message.setExtension(defaultInt64Extension, 402L);
      message.setExtension(defaultUint32Extension, 403);
      message.setExtension(defaultUint64Extension, 404L);
      message.setExtension(defaultSint32Extension, 405);
      message.setExtension(defaultSint64Extension, 406L);
      message.setExtension(defaultFixed32Extension, 407);
      message.setExtension(defaultFixed64Extension, 408L);
      message.setExtension(defaultSfixed32Extension, 409);
      message.setExtension(defaultSfixed64Extension, 410L);
      message.setExtension(defaultFloatExtension, 411F);
      message.setExtension(defaultDoubleExtension, 412D);
      message.setExtension(defaultBoolExtension, false);
      message.setExtension(defaultStringExtension, "415");
      message.setExtension(defaultBytesExtension, toBytes("416"));
  
      message.setExtension(defaultNestedEnumExtension, TestAllTypes.NestedEnum.FOO);
      message.setExtension(defaultForeignEnumExtension, ForeignEnum.FOREIGN_FOO);
      message.setExtension(defaultImportEnumExtension, ImportEnum.IMPORT_FOO);
  
      message.setExtension(defaultStringPieceExtension, "424");
      message.setExtension(defaultCordExtension, "425");
  
      message.setExtension(oneofUint32Extension, 601);
      message.setExtension(
          oneofNestedMessageExtension, TestAllTypes.NestedMessage.newBuilder().setBb(602).build());
      message.setExtension(oneofStringExtension, "603");
      message.setExtension(oneofBytesExtension, toBytes("604"));
    }
  
    // -------------------------------------------------------------------
  
    /**
     * Modify the repeated extensions of {@code message} to contain the values expected by {@code
     * assertRepeatedExtensionsModified()}.
     */
    public static void modifyRepeatedExtensions(TestAllExtensions.Builder message) {
      message.setExtension(repeatedInt32Extension, 1, 501);
      message.setExtension(repeatedInt64Extension, 1, 502L);
      message.setExtension(repeatedUint32Extension, 1, 503);
      message.setExtension(repeatedUint64Extension, 1, 504L);
      message.setExtension(repeatedSint32Extension, 1, 505);
      message.setExtension(repeatedSint64Extension, 1, 506L);
      message.setExtension(repeatedFixed32Extension, 1, 507);
      message.setExtension(repeatedFixed64Extension, 1, 508L);
      message.setExtension(repeatedSfixed32Extension, 1, 509);
      message.setExtension(repeatedSfixed64Extension, 1, 510L);
      message.setExtension(repeatedFloatExtension, 1, 511F);
      message.setExtension(repeatedDoubleExtension, 1, 512D);
      message.setExtension(repeatedBoolExtension, 1, true);
      message.setExtension(repeatedStringExtension, 1, "515");
      message.setExtension(repeatedBytesExtension, 1, toBytes("516"));
  
      message.setExtension(
          repeatedGroupExtension, 1, RepeatedGroup_extension.newBuilder().setA(517).build());
      message.setExtension(
          repeatedNestedMessageExtension,
          1,
          TestAllTypes.NestedMessage.newBuilder().setBb(518).build());
      message.setExtension(
          repeatedForeignMessageExtension, 1, ForeignMessage.newBuilder().setC(519).build());
      message.setExtension(
          repeatedImportMessageExtension, 1, ImportMessage.newBuilder().setD(520).build());
      message.setExtension(
          repeatedLazyMessageExtension,
          1,
          TestAllTypes.NestedMessage.newBuilder().setBb(527).build());
  
      message.setExtension(repeatedNestedEnumExtension, 1, TestAllTypes.NestedEnum.FOO);
      message.setExtension(repeatedForeignEnumExtension, 1, ForeignEnum.FOREIGN_FOO);
      message.setExtension(repeatedImportEnumExtension, 1, ImportEnum.IMPORT_FOO);
  
      message.setExtension(repeatedStringPieceExtension, 1, "524");
      message.setExtension(repeatedCordExtension, 1, "525");
    }
  
    // -------------------------------------------------------------------
  
    /**
     * Assert (using {@code junit.framework.Assert}} that all extensions of {@code message} are set to
     * the values assigned by {@code setAllExtensions}.
     */
    public static void assertAllExtensionsSet(TestAllExtensionsOrBuilder message) {
      Assert.assertTrue(message.hasExtension(optionalInt32Extension));
      Assert.assertTrue(message.hasExtension(optionalInt64Extension));
      Assert.assertTrue(message.hasExtension(optionalUint32Extension));
      Assert.assertTrue(message.hasExtension(optionalUint64Extension));
      Assert.assertTrue(message.hasExtension(optionalSint32Extension));
      Assert.assertTrue(message.hasExtension(optionalSint64Extension));
      Assert.assertTrue(message.hasExtension(optionalFixed32Extension));
      Assert.assertTrue(message.hasExtension(optionalFixed64Extension));
      Assert.assertTrue(message.hasExtension(optionalSfixed32Extension));
      Assert.assertTrue(message.hasExtension(optionalSfixed64Extension));
      Assert.assertTrue(message.hasExtension(optionalFloatExtension));
      Assert.assertTrue(message.hasExtension(optionalDoubleExtension));
      Assert.assertTrue(message.hasExtension(optionalBoolExtension));
      Assert.assertTrue(message.hasExtension(optionalStringExtension));
      Assert.assertTrue(message.hasExtension(optionalBytesExtension));
  
      Assert.assertTrue(message.hasExtension(optionalGroupExtension));
      Assert.assertTrue(message.hasExtension(optionalNestedMessageExtension));
      Assert.assertTrue(message.hasExtension(optionalForeignMessageExtension));
      Assert.assertTrue(message.hasExtension(optionalImportMessageExtension));
  
      Assert.assertTrue(message.getExtension(optionalGroupExtension).hasA());
      Assert.assertTrue(message.getExtension(optionalNestedMessageExtension).hasBb());
      Assert.assertTrue(message.getExtension(optionalForeignMessageExtension).hasC());
      Assert.assertTrue(message.getExtension(optionalImportMessageExtension).hasD());
  
      Assert.assertTrue(message.hasExtension(optionalNestedEnumExtension));
      Assert.assertTrue(message.hasExtension(optionalForeignEnumExtension));
      Assert.assertTrue(message.hasExtension(optionalImportEnumExtension));
  
      Assert.assertTrue(message.hasExtension(optionalStringPieceExtension));
      Assert.assertTrue(message.hasExtension(optionalCordExtension));
  
      assertEqualsExactType(101, message.getExtension(optionalInt32Extension));
      assertEqualsExactType(102L, message.getExtension(optionalInt64Extension));
      assertEqualsExactType(103, message.getExtension(optionalUint32Extension));
      assertEqualsExactType(104L, message.getExtension(optionalUint64Extension));
      assertEqualsExactType(105, message.getExtension(optionalSint32Extension));
      assertEqualsExactType(106L, message.getExtension(optionalSint64Extension));
      assertEqualsExactType(107, message.getExtension(optionalFixed32Extension));
      assertEqualsExactType(108L, message.getExtension(optionalFixed64Extension));
      assertEqualsExactType(109, message.getExtension(optionalSfixed32Extension));
      assertEqualsExactType(110L, message.getExtension(optionalSfixed64Extension));
      assertEqualsExactType(111F, message.getExtension(optionalFloatExtension));
      assertEqualsExactType(112D, message.getExtension(optionalDoubleExtension));
      assertEqualsExactType(true, message.getExtension(optionalBoolExtension));
      assertEqualsExactType("115", message.getExtension(optionalStringExtension));
      assertEqualsExactType(toBytes("116"), message.getExtension(optionalBytesExtension));
  
      assertEqualsExactType(117, message.getExtension(optionalGroupExtension).getA());
      assertEqualsExactType(118, message.getExtension(optionalNestedMessageExtension).getBb());
      assertEqualsExactType(119, message.getExtension(optionalForeignMessageExtension).getC());
      assertEqualsExactType(120, message.getExtension(optionalImportMessageExtension).getD());
      assertEqualsExactType(126, message.getExtension(optionalPublicImportMessageExtension).getE());
      assertEqualsExactType(127, message.getExtension(optionalLazyMessageExtension).getBb());
  
      assertEqualsExactType(
          TestAllTypes.NestedEnum.BAZ, message.getExtension(optionalNestedEnumExtension));
      assertEqualsExactType(
          ForeignEnum.FOREIGN_BAZ, message.getExtension(optionalForeignEnumExtension));
      assertEqualsExactType(ImportEnum.IMPORT_BAZ, message.getExtension(optionalImportEnumExtension));
  
      assertEqualsExactType("124", message.getExtension(optionalStringPieceExtension));
      assertEqualsExactType("125", message.getExtension(optionalCordExtension));
  
      // -----------------------------------------------------------------
  
      Assert.assertEquals(2, message.getExtensionCount(repeatedInt32Extension));
      Assert.assertEquals(2, message.getExtensionCount(repeatedInt64Extension));
      Assert.assertEquals(2, message.getExtensionCount(repeatedUint32Extension));
      Assert.assertEquals(2, message.getExtensionCount(repeatedUint64Extension));
      Assert.assertEquals(2, message.getExtensionCount(repeatedSint32Extension));
      Assert.assertEquals(2, message.getExtensionCount(repeatedSint64Extension));
      Assert.assertEquals(2, message.getExtensionCount(repeatedFixed32Extension));
      Assert.assertEquals(2, message.getExtensionCount(repeatedFixed64Extension));
      Assert.assertEquals(2, message.getExtensionCount(repeatedSfixed32Extension));
      Assert.assertEquals(2, message.getExtensionCount(repeatedSfixed64Extension));
      Assert.assertEquals(2, message.getExtensionCount(repeatedFloatExtension));
      Assert.assertEquals(2, message.getExtensionCount(repeatedDoubleExtension));
      Assert.assertEquals(2, message.getExtensionCount(repeatedBoolExtension));
      Assert.assertEquals(2, message.getExtensionCount(repeatedStringExtension));
      Assert.assertEquals(2, message.getExtensionCount(repeatedBytesExtension));
  
      Assert.assertEquals(2, message.getExtensionCount(repeatedGroupExtension));
      Assert.assertEquals(2, message.getExtensionCount(repeatedNestedMessageExtension));
      Assert.assertEquals(2, message.getExtensionCount(repeatedForeignMessageExtension));
      Assert.assertEquals(2, message.getExtensionCount(repeatedImportMessageExtension));
      Assert.assertEquals(2, message.getExtensionCount(repeatedLazyMessageExtension));
      Assert.assertEquals(2, message.getExtensionCount(repeatedNestedEnumExtension));
      Assert.assertEquals(2, message.getExtensionCount(repeatedForeignEnumExtension));
      Assert.assertEquals(2, message.getExtensionCount(repeatedImportEnumExtension));
  
      Assert.assertEquals(2, message.getExtensionCount(repeatedStringPieceExtension));
      Assert.assertEquals(2, message.getExtensionCount(repeatedCordExtension));
  
      assertEqualsExactType(201, message.getExtension(repeatedInt32Extension, 0));
      assertEqualsExactType(202L, message.getExtension(repeatedInt64Extension, 0));
      assertEqualsExactType(203, message.getExtension(repeatedUint32Extension, 0));
      assertEqualsExactType(204L, message.getExtension(repeatedUint64Extension, 0));
      assertEqualsExactType(205, message.getExtension(repeatedSint32Extension, 0));
      assertEqualsExactType(206L, message.getExtension(repeatedSint64Extension, 0));
      assertEqualsExactType(207, message.getExtension(repeatedFixed32Extension, 0));
      assertEqualsExactType(208L, message.getExtension(repeatedFixed64Extension, 0));
      assertEqualsExactType(209, message.getExtension(repeatedSfixed32Extension, 0));
      assertEqualsExactType(210L, message.getExtension(repeatedSfixed64Extension, 0));
      assertEqualsExactType(211F, message.getExtension(repeatedFloatExtension, 0));
      assertEqualsExactType(212D, message.getExtension(repeatedDoubleExtension, 0));
      assertEqualsExactType(true, message.getExtension(repeatedBoolExtension, 0));
      assertEqualsExactType("215", message.getExtension(repeatedStringExtension, 0));
      assertEqualsExactType(toBytes("216"), message.getExtension(repeatedBytesExtension, 0));
  
      assertEqualsExactType(217, message.getExtension(repeatedGroupExtension, 0).getA());
      assertEqualsExactType(218, message.getExtension(repeatedNestedMessageExtension, 0).getBb());
      assertEqualsExactType(219, message.getExtension(repeatedForeignMessageExtension, 0).getC());
      assertEqualsExactType(220, message.getExtension(repeatedImportMessageExtension, 0).getD());
      assertEqualsExactType(227, message.getExtension(repeatedLazyMessageExtension, 0).getBb());
  
      assertEqualsExactType(
          TestAllTypes.NestedEnum.BAR, message.getExtension(repeatedNestedEnumExtension, 0));
      assertEqualsExactType(
          ForeignEnum.FOREIGN_BAR, message.getExtension(repeatedForeignEnumExtension, 0));
      assertEqualsExactType(
          ImportEnum.IMPORT_BAR, message.getExtension(repeatedImportEnumExtension, 0));
  
      assertEqualsExactType("224", message.getExtension(repeatedStringPieceExtension, 0));
      assertEqualsExactType("225", message.getExtension(repeatedCordExtension, 0));
  
      assertEqualsExactType(301, message.getExtension(repeatedInt32Extension, 1));
      assertEqualsExactType(302L, message.getExtension(repeatedInt64Extension, 1));
      assertEqualsExactType(303, message.getExtension(repeatedUint32Extension, 1));
      assertEqualsExactType(304L, message.getExtension(repeatedUint64Extension, 1));
      assertEqualsExactType(305, message.getExtension(repeatedSint32Extension, 1));
      assertEqualsExactType(306L, message.getExtension(repeatedSint64Extension, 1));
      assertEqualsExactType(307, message.getExtension(repeatedFixed32Extension, 1));
      assertEqualsExactType(308L, message.getExtension(repeatedFixed64Extension, 1));
      assertEqualsExactType(309, message.getExtension(repeatedSfixed32Extension, 1));
      assertEqualsExactType(310L, message.getExtension(repeatedSfixed64Extension, 1));
      assertEqualsExactType(311F, message.getExtension(repeatedFloatExtension, 1));
      assertEqualsExactType(312D, message.getExtension(repeatedDoubleExtension, 1));
      assertEqualsExactType(false, message.getExtension(repeatedBoolExtension, 1));
      assertEqualsExactType("315", message.getExtension(repeatedStringExtension, 1));
      assertEqualsExactType(toBytes("316"), message.getExtension(repeatedBytesExtension, 1));
  
      assertEqualsExactType(317, message.getExtension(repeatedGroupExtension, 1).getA());
      assertEqualsExactType(318, message.getExtension(repeatedNestedMessageExtension, 1).getBb());
      assertEqualsExactType(319, message.getExtension(repeatedForeignMessageExtension, 1).getC());
      assertEqualsExactType(320, message.getExtension(repeatedImportMessageExtension, 1).getD());
      assertEqualsExactType(327, message.getExtension(repeatedLazyMessageExtension, 1).getBb());
  
      assertEqualsExactType(
          TestAllTypes.NestedEnum.BAZ, message.getExtension(repeatedNestedEnumExtension, 1));
      assertEqualsExactType(
          ForeignEnum.FOREIGN_BAZ, message.getExtension(repeatedForeignEnumExtension, 1));
      assertEqualsExactType(
          ImportEnum.IMPORT_BAZ, message.getExtension(repeatedImportEnumExtension, 1));
  
      assertEqualsExactType("324", message.getExtension(repeatedStringPieceExtension, 1));
      assertEqualsExactType("325", message.getExtension(repeatedCordExtension, 1));
  
      // -----------------------------------------------------------------
  
      Assert.assertTrue(message.hasExtension(defaultInt32Extension));
      Assert.assertTrue(message.hasExtension(defaultInt64Extension));
      Assert.assertTrue(message.hasExtension(defaultUint32Extension));
      Assert.assertTrue(message.hasExtension(defaultUint64Extension));
      Assert.assertTrue(message.hasExtension(defaultSint32Extension));
      Assert.assertTrue(message.hasExtension(defaultSint64Extension));
      Assert.assertTrue(message.hasExtension(defaultFixed32Extension));
      Assert.assertTrue(message.hasExtension(defaultFixed64Extension));
      Assert.assertTrue(message.hasExtension(defaultSfixed32Extension));
      Assert.assertTrue(message.hasExtension(defaultSfixed64Extension));
      Assert.assertTrue(message.hasExtension(defaultFloatExtension));
      Assert.assertTrue(message.hasExtension(defaultDoubleExtension));
      Assert.assertTrue(message.hasExtension(defaultBoolExtension));
      Assert.assertTrue(message.hasExtension(defaultStringExtension));
      Assert.assertTrue(message.hasExtension(defaultBytesExtension));
  
      Assert.assertTrue(message.hasExtension(defaultNestedEnumExtension));
      Assert.assertTrue(message.hasExtension(defaultForeignEnumExtension));
      Assert.assertTrue(message.hasExtension(defaultImportEnumExtension));
  
      Assert.assertTrue(message.hasExtension(defaultStringPieceExtension));
      Assert.assertTrue(message.hasExtension(defaultCordExtension));
  
      assertEqualsExactType(401, message.getExtension(defaultInt32Extension));
      assertEqualsExactType(402L, message.getExtension(defaultInt64Extension));
      assertEqualsExactType(403, message.getExtension(defaultUint32Extension));
      assertEqualsExactType(404L, message.getExtension(defaultUint64Extension));
      assertEqualsExactType(405, message.getExtension(defaultSint32Extension));
      assertEqualsExactType(406L, message.getExtension(defaultSint64Extension));
      assertEqualsExactType(407, message.getExtension(defaultFixed32Extension));
      assertEqualsExactType(408L, message.getExtension(defaultFixed64Extension));
      assertEqualsExactType(409, message.getExtension(defaultSfixed32Extension));
      assertEqualsExactType(410L, message.getExtension(defaultSfixed64Extension));
      assertEqualsExactType(411F, message.getExtension(defaultFloatExtension));
      assertEqualsExactType(412D, message.getExtension(defaultDoubleExtension));
      assertEqualsExactType(false, message.getExtension(defaultBoolExtension));
      assertEqualsExactType("415", message.getExtension(defaultStringExtension));
      assertEqualsExactType(toBytes("416"), message.getExtension(defaultBytesExtension));
  
      assertEqualsExactType(
          TestAllTypes.NestedEnum.FOO, message.getExtension(defaultNestedEnumExtension));
      assertEqualsExactType(
          ForeignEnum.FOREIGN_FOO, message.getExtension(defaultForeignEnumExtension));
      assertEqualsExactType(ImportEnum.IMPORT_FOO, message.getExtension(defaultImportEnumExtension));
  
      assertEqualsExactType("424", message.getExtension(defaultStringPieceExtension));
      assertEqualsExactType("425", message.getExtension(defaultCordExtension));
  
      Assert.assertTrue(message.hasExtension(oneofBytesExtension));
  
      assertEqualsExactType(toBytes("604"), message.getExtension(oneofBytesExtension));
    }
  
    // -------------------------------------------------------------------
  
    /**
     * Assert (using {@code junit.framework.Assert}} that all extensions of {@code message} are
     * cleared, and that getting the extensions returns their default values.
     */
    public static void assertExtensionsClear(TestAllExtensionsOrBuilder message) {
      // hasBlah() should initially be false for all optional fields.
      Assert.assertFalse(message.hasExtension(optionalInt32Extension));
      Assert.assertFalse(message.hasExtension(optionalInt64Extension));
      Assert.assertFalse(message.hasExtension(optionalUint32Extension));
      Assert.assertFalse(message.hasExtension(optionalUint64Extension));
      Assert.assertFalse(message.hasExtension(optionalSint32Extension));
      Assert.assertFalse(message.hasExtension(optionalSint64Extension));
      Assert.assertFalse(message.hasExtension(optionalFixed32Extension));
      Assert.assertFalse(message.hasExtension(optionalFixed64Extension));
      Assert.assertFalse(message.hasExtension(optionalSfixed32Extension));
      Assert.assertFalse(message.hasExtension(optionalSfixed64Extension));
      Assert.assertFalse(message.hasExtension(optionalFloatExtension));
      Assert.assertFalse(message.hasExtension(optionalDoubleExtension));
      Assert.assertFalse(message.hasExtension(optionalBoolExtension));
      Assert.assertFalse(message.hasExtension(optionalStringExtension));
      Assert.assertFalse(message.hasExtension(optionalBytesExtension));
  
      Assert.assertFalse(message.hasExtension(optionalGroupExtension));
      Assert.assertFalse(message.hasExtension(optionalNestedMessageExtension));
      Assert.assertFalse(message.hasExtension(optionalForeignMessageExtension));
      Assert.assertFalse(message.hasExtension(optionalImportMessageExtension));
  
      Assert.assertFalse(message.hasExtension(optionalNestedEnumExtension));
      Assert.assertFalse(message.hasExtension(optionalForeignEnumExtension));
      Assert.assertFalse(message.hasExtension(optionalImportEnumExtension));
  
      Assert.assertFalse(message.hasExtension(optionalStringPieceExtension));
      Assert.assertFalse(message.hasExtension(optionalCordExtension));
  
      // Optional fields without defaults are set to zero or something like it.
      assertEqualsExactType(0, message.getExtension(optionalInt32Extension));
      assertEqualsExactType(0L, message.getExtension(optionalInt64Extension));
      assertEqualsExactType(0, message.getExtension(optionalUint32Extension));
      assertEqualsExactType(0L, message.getExtension(optionalUint64Extension));
      assertEqualsExactType(0, message.getExtension(optionalSint32Extension));
      assertEqualsExactType(0L, message.getExtension(optionalSint64Extension));
      assertEqualsExactType(0, message.getExtension(optionalFixed32Extension));
      assertEqualsExactType(0L, message.getExtension(optionalFixed64Extension));
      assertEqualsExactType(0, message.getExtension(optionalSfixed32Extension));
      assertEqualsExactType(0L, message.getExtension(optionalSfixed64Extension));
      assertEqualsExactType(0F, message.getExtension(optionalFloatExtension));
      assertEqualsExactType(0D, message.getExtension(optionalDoubleExtension));
      assertEqualsExactType(false, message.getExtension(optionalBoolExtension));
      assertEqualsExactType("", message.getExtension(optionalStringExtension));
      assertEqualsExactType(ByteString.EMPTY, message.getExtension(optionalBytesExtension));
  
      // Embedded messages should also be clear.
      Assert.assertFalse(message.getExtension(optionalGroupExtension).hasA());
      Assert.assertFalse(message.getExtension(optionalNestedMessageExtension).hasBb());
      Assert.assertFalse(message.getExtension(optionalForeignMessageExtension).hasC());
      Assert.assertFalse(message.getExtension(optionalImportMessageExtension).hasD());
  
      assertEqualsExactType(0, message.getExtension(optionalGroupExtension).getA());
      assertEqualsExactType(0, message.getExtension(optionalNestedMessageExtension).getBb());
      assertEqualsExactType(0, message.getExtension(optionalForeignMessageExtension).getC());
      assertEqualsExactType(0, message.getExtension(optionalImportMessageExtension).getD());
  
      // Enums without defaults are set to the first value in the enum.
      assertEqualsExactType(
          TestAllTypes.NestedEnum.FOO, message.getExtension(optionalNestedEnumExtension));
      assertEqualsExactType(
          ForeignEnum.FOREIGN_FOO, message.getExtension(optionalForeignEnumExtension));
      assertEqualsExactType(ImportEnum.IMPORT_FOO, message.getExtension(optionalImportEnumExtension));
  
      assertEqualsExactType("", message.getExtension(optionalStringPieceExtension));
      assertEqualsExactType("", message.getExtension(optionalCordExtension));
  
      // Repeated fields are empty.
      Assert.assertEquals(0, message.getExtensionCount(repeatedInt32Extension));
      Assert.assertEquals(0, message.getExtensionCount(repeatedInt64Extension));
      Assert.assertEquals(0, message.getExtensionCount(repeatedUint32Extension));
      Assert.assertEquals(0, message.getExtensionCount(repeatedUint64Extension));
      Assert.assertEquals(0, message.getExtensionCount(repeatedSint32Extension));
      Assert.assertEquals(0, message.getExtensionCount(repeatedSint64Extension));
      Assert.assertEquals(0, message.getExtensionCount(repeatedFixed32Extension));
      Assert.assertEquals(0, message.getExtensionCount(repeatedFixed64Extension));
      Assert.assertEquals(0, message.getExtensionCount(repeatedSfixed32Extension));
      Assert.assertEquals(0, message.getExtensionCount(repeatedSfixed64Extension));
      Assert.assertEquals(0, message.getExtensionCount(repeatedFloatExtension));
      Assert.assertEquals(0, message.getExtensionCount(repeatedDoubleExtension));
      Assert.assertEquals(0, message.getExtensionCount(repeatedBoolExtension));
      Assert.assertEquals(0, message.getExtensionCount(repeatedStringExtension));
      Assert.assertEquals(0, message.getExtensionCount(repeatedBytesExtension));
  
      Assert.assertEquals(0, message.getExtensionCount(repeatedGroupExtension));
      Assert.assertEquals(0, message.getExtensionCount(repeatedNestedMessageExtension));
      Assert.assertEquals(0, message.getExtensionCount(repeatedForeignMessageExtension));
      Assert.assertEquals(0, message.getExtensionCount(repeatedImportMessageExtension));
      Assert.assertEquals(0, message.getExtensionCount(repeatedLazyMessageExtension));
      Assert.assertEquals(0, message.getExtensionCount(repeatedNestedEnumExtension));
      Assert.assertEquals(0, message.getExtensionCount(repeatedForeignEnumExtension));
      Assert.assertEquals(0, message.getExtensionCount(repeatedImportEnumExtension));
  
      Assert.assertEquals(0, message.getExtensionCount(repeatedStringPieceExtension));
      Assert.assertEquals(0, message.getExtensionCount(repeatedCordExtension));
  
      // Repeated fields are empty via getExtension().size().
      Assert.assertEquals(0, message.getExtension(repeatedInt32Extension).size());
      Assert.assertEquals(0, message.getExtension(repeatedInt64Extension).size());
      Assert.assertEquals(0, message.getExtension(repeatedUint32Extension).size());
      Assert.assertEquals(0, message.getExtension(repeatedUint64Extension).size());
      Assert.assertEquals(0, message.getExtension(repeatedSint32Extension).size());
      Assert.assertEquals(0, message.getExtension(repeatedSint64Extension).size());
      Assert.assertEquals(0, message.getExtension(repeatedFixed32Extension).size());
      Assert.assertEquals(0, message.getExtension(repeatedFixed64Extension).size());
      Assert.assertEquals(0, message.getExtension(repeatedSfixed32Extension).size());
      Assert.assertEquals(0, message.getExtension(repeatedSfixed64Extension).size());
      Assert.assertEquals(0, message.getExtension(repeatedFloatExtension).size());
      Assert.assertEquals(0, message.getExtension(repeatedDoubleExtension).size());
      Assert.assertEquals(0, message.getExtension(repeatedBoolExtension).size());
      Assert.assertEquals(0, message.getExtension(repeatedStringExtension).size());
      Assert.assertEquals(0, message.getExtension(repeatedBytesExtension).size());
  
      Assert.assertEquals(0, message.getExtension(repeatedGroupExtension).size());
      Assert.assertEquals(0, message.getExtension(repeatedNestedMessageExtension).size());
      Assert.assertEquals(0, message.getExtension(repeatedForeignMessageExtension).size());
      Assert.assertEquals(0, message.getExtension(repeatedImportMessageExtension).size());
      Assert.assertEquals(0, message.getExtension(repeatedLazyMessageExtension).size());
      Assert.assertEquals(0, message.getExtension(repeatedNestedEnumExtension).size());
      Assert.assertEquals(0, message.getExtension(repeatedForeignEnumExtension).size());
      Assert.assertEquals(0, message.getExtension(repeatedImportEnumExtension).size());
  
      Assert.assertEquals(0, message.getExtension(repeatedStringPieceExtension).size());
      Assert.assertEquals(0, message.getExtension(repeatedCordExtension).size());
  
      // hasBlah() should also be false for all default fields.
      Assert.assertFalse(message.hasExtension(defaultInt32Extension));
      Assert.assertFalse(message.hasExtension(defaultInt64Extension));
      Assert.assertFalse(message.hasExtension(defaultUint32Extension));
      Assert.assertFalse(message.hasExtension(defaultUint64Extension));
      Assert.assertFalse(message.hasExtension(defaultSint32Extension));
      Assert.assertFalse(message.hasExtension(defaultSint64Extension));
      Assert.assertFalse(message.hasExtension(defaultFixed32Extension));
      Assert.assertFalse(message.hasExtension(defaultFixed64Extension));
      Assert.assertFalse(message.hasExtension(defaultSfixed32Extension));
      Assert.assertFalse(message.hasExtension(defaultSfixed64Extension));
      Assert.assertFalse(message.hasExtension(defaultFloatExtension));
      Assert.assertFalse(message.hasExtension(defaultDoubleExtension));
      Assert.assertFalse(message.hasExtension(defaultBoolExtension));
      Assert.assertFalse(message.hasExtension(defaultStringExtension));
      Assert.assertFalse(message.hasExtension(defaultBytesExtension));
  
      Assert.assertFalse(message.hasExtension(defaultNestedEnumExtension));
      Assert.assertFalse(message.hasExtension(defaultForeignEnumExtension));
      Assert.assertFalse(message.hasExtension(defaultImportEnumExtension));
  
      Assert.assertFalse(message.hasExtension(defaultStringPieceExtension));
      Assert.assertFalse(message.hasExtension(defaultCordExtension));
  
      // Fields with defaults have their default values (duh).
      assertEqualsExactType(41, message.getExtension(defaultInt32Extension));
      assertEqualsExactType(42L, message.getExtension(defaultInt64Extension));
      assertEqualsExactType(43, message.getExtension(defaultUint32Extension));
      assertEqualsExactType(44L, message.getExtension(defaultUint64Extension));
      assertEqualsExactType(-45, message.getExtension(defaultSint32Extension));
      assertEqualsExactType(46L, message.getExtension(defaultSint64Extension));
      assertEqualsExactType(47, message.getExtension(defaultFixed32Extension));
      assertEqualsExactType(48L, message.getExtension(defaultFixed64Extension));
      assertEqualsExactType(49, message.getExtension(defaultSfixed32Extension));
      assertEqualsExactType(-50L, message.getExtension(defaultSfixed64Extension));
      assertEqualsExactType(51.5F, message.getExtension(defaultFloatExtension));
      assertEqualsExactType(52e3D, message.getExtension(defaultDoubleExtension));
      assertEqualsExactType(true, message.getExtension(defaultBoolExtension));
      assertEqualsExactType("hello", message.getExtension(defaultStringExtension));
      assertEqualsExactType(toBytes("world"), message.getExtension(defaultBytesExtension));
  
      assertEqualsExactType(
          TestAllTypes.NestedEnum.BAR, message.getExtension(defaultNestedEnumExtension));
      assertEqualsExactType(
          ForeignEnum.FOREIGN_BAR, message.getExtension(defaultForeignEnumExtension));
      assertEqualsExactType(ImportEnum.IMPORT_BAR, message.getExtension(defaultImportEnumExtension));
  
      assertEqualsExactType("abc", message.getExtension(defaultStringPieceExtension));
      assertEqualsExactType("123", message.getExtension(defaultCordExtension));
  
      Assert.assertFalse(message.hasExtension(oneofUint32Extension));
      Assert.assertFalse(message.hasExtension(oneofNestedMessageExtension));
      Assert.assertFalse(message.hasExtension(oneofStringExtension));
      Assert.assertFalse(message.hasExtension(oneofBytesExtension));
    }
  
    // -------------------------------------------------------------------
  
    /**
     * Assert (using {@code junit.framework.Assert}} that all extensions of {@code message} are set to
     * the values assigned by {@code setAllExtensions} followed by {@code modifyRepeatedExtensions}.
     */
    public static void assertRepeatedExtensionsModified(TestAllExtensionsOrBuilder message) {
      // ModifyRepeatedFields only sets the second repeated element of each
      // field.  In addition to verifying this, we also verify that the first
      // element and size were *not* modified.
      Assert.assertEquals(2, message.getExtensionCount(repeatedInt32Extension));
      Assert.assertEquals(2, message.getExtensionCount(repeatedInt64Extension));
      Assert.assertEquals(2, message.getExtensionCount(repeatedUint32Extension));
      Assert.assertEquals(2, message.getExtensionCount(repeatedUint64Extension));
      Assert.assertEquals(2, message.getExtensionCount(repeatedSint32Extension));
      Assert.assertEquals(2, message.getExtensionCount(repeatedSint64Extension));
      Assert.assertEquals(2, message.getExtensionCount(repeatedFixed32Extension));
      Assert.assertEquals(2, message.getExtensionCount(repeatedFixed64Extension));
      Assert.assertEquals(2, message.getExtensionCount(repeatedSfixed32Extension));
      Assert.assertEquals(2, message.getExtensionCount(repeatedSfixed64Extension));
      Assert.assertEquals(2, message.getExtensionCount(repeatedFloatExtension));
      Assert.assertEquals(2, message.getExtensionCount(repeatedDoubleExtension));
      Assert.assertEquals(2, message.getExtensionCount(repeatedBoolExtension));
      Assert.assertEquals(2, message.getExtensionCount(repeatedStringExtension));
      Assert.assertEquals(2, message.getExtensionCount(repeatedBytesExtension));
  
      Assert.assertEquals(2, message.getExtensionCount(repeatedGroupExtension));
      Assert.assertEquals(2, message.getExtensionCount(repeatedNestedMessageExtension));
      Assert.assertEquals(2, message.getExtensionCount(repeatedForeignMessageExtension));
      Assert.assertEquals(2, message.getExtensionCount(repeatedImportMessageExtension));
      Assert.assertEquals(2, message.getExtensionCount(repeatedLazyMessageExtension));
      Assert.assertEquals(2, message.getExtensionCount(repeatedNestedEnumExtension));
      Assert.assertEquals(2, message.getExtensionCount(repeatedForeignEnumExtension));
      Assert.assertEquals(2, message.getExtensionCount(repeatedImportEnumExtension));
  
      Assert.assertEquals(2, message.getExtensionCount(repeatedStringPieceExtension));
      Assert.assertEquals(2, message.getExtensionCount(repeatedCordExtension));
  
      assertEqualsExactType(201, message.getExtension(repeatedInt32Extension, 0));
      assertEqualsExactType(202L, message.getExtension(repeatedInt64Extension, 0));
      assertEqualsExactType(203, message.getExtension(repeatedUint32Extension, 0));
      assertEqualsExactType(204L, message.getExtension(repeatedUint64Extension, 0));
      assertEqualsExactType(205, message.getExtension(repeatedSint32Extension, 0));
      assertEqualsExactType(206L, message.getExtension(repeatedSint64Extension, 0));
      assertEqualsExactType(207, message.getExtension(repeatedFixed32Extension, 0));
      assertEqualsExactType(208L, message.getExtension(repeatedFixed64Extension, 0));
      assertEqualsExactType(209, message.getExtension(repeatedSfixed32Extension, 0));
      assertEqualsExactType(210L, message.getExtension(repeatedSfixed64Extension, 0));
      assertEqualsExactType(211F, message.getExtension(repeatedFloatExtension, 0));
      assertEqualsExactType(212D, message.getExtension(repeatedDoubleExtension, 0));
      assertEqualsExactType(true, message.getExtension(repeatedBoolExtension, 0));
      assertEqualsExactType("215", message.getExtension(repeatedStringExtension, 0));
      assertEqualsExactType(toBytes("216"), message.getExtension(repeatedBytesExtension, 0));
  
      assertEqualsExactType(217, message.getExtension(repeatedGroupExtension, 0).getA());
      assertEqualsExactType(218, message.getExtension(repeatedNestedMessageExtension, 0).getBb());
      assertEqualsExactType(219, message.getExtension(repeatedForeignMessageExtension, 0).getC());
      assertEqualsExactType(220, message.getExtension(repeatedImportMessageExtension, 0).getD());
      assertEqualsExactType(227, message.getExtension(repeatedLazyMessageExtension, 0).getBb());
  
      assertEqualsExactType(
          TestAllTypes.NestedEnum.BAR, message.getExtension(repeatedNestedEnumExtension, 0));
      assertEqualsExactType(
          ForeignEnum.FOREIGN_BAR, message.getExtension(repeatedForeignEnumExtension, 0));
      assertEqualsExactType(
          ImportEnum.IMPORT_BAR, message.getExtension(repeatedImportEnumExtension, 0));
  
      assertEqualsExactType("224", message.getExtension(repeatedStringPieceExtension, 0));
      assertEqualsExactType("225", message.getExtension(repeatedCordExtension, 0));
  
      // Actually verify the second (modified) elements now.
      assertEqualsExactType(501, message.getExtension(repeatedInt32Extension, 1));
      assertEqualsExactType(502L, message.getExtension(repeatedInt64Extension, 1));
      assertEqualsExactType(503, message.getExtension(repeatedUint32Extension, 1));
      assertEqualsExactType(504L, message.getExtension(repeatedUint64Extension, 1));
      assertEqualsExactType(505, message.getExtension(repeatedSint32Extension, 1));
      assertEqualsExactType(506L, message.getExtension(repeatedSint64Extension, 1));
      assertEqualsExactType(507, message.getExtension(repeatedFixed32Extension, 1));
      assertEqualsExactType(508L, message.getExtension(repeatedFixed64Extension, 1));
      assertEqualsExactType(509, message.getExtension(repeatedSfixed32Extension, 1));
      assertEqualsExactType(510L, message.getExtension(repeatedSfixed64Extension, 1));
      assertEqualsExactType(511F, message.getExtension(repeatedFloatExtension, 1));
      assertEqualsExactType(512D, message.getExtension(repeatedDoubleExtension, 1));
      assertEqualsExactType(true, message.getExtension(repeatedBoolExtension, 1));
      assertEqualsExactType("515", message.getExtension(repeatedStringExtension, 1));
      assertEqualsExactType(toBytes("516"), message.getExtension(repeatedBytesExtension, 1));
  
      assertEqualsExactType(517, message.getExtension(repeatedGroupExtension, 1).getA());
      assertEqualsExactType(518, message.getExtension(repeatedNestedMessageExtension, 1).getBb());
      assertEqualsExactType(519, message.getExtension(repeatedForeignMessageExtension, 1).getC());
      assertEqualsExactType(520, message.getExtension(repeatedImportMessageExtension, 1).getD());
      assertEqualsExactType(527, message.getExtension(repeatedLazyMessageExtension, 1).getBb());
  
      assertEqualsExactType(
          TestAllTypes.NestedEnum.FOO, message.getExtension(repeatedNestedEnumExtension, 1));
      assertEqualsExactType(
          ForeignEnum.FOREIGN_FOO, message.getExtension(repeatedForeignEnumExtension, 1));
      assertEqualsExactType(
          ImportEnum.IMPORT_FOO, message.getExtension(repeatedImportEnumExtension, 1));
  
      assertEqualsExactType("524", message.getExtension(repeatedStringPieceExtension, 1));
      assertEqualsExactType("525", message.getExtension(repeatedCordExtension, 1));
    }
  
    public static void setPackedExtensions(TestPackedExtensions.Builder message) {
      message.addExtension(packedInt32Extension, 601);
      message.addExtension(packedInt64Extension, 602L);
      message.addExtension(packedUint32Extension, 603);
      message.addExtension(packedUint64Extension, 604L);
      message.addExtension(packedSint32Extension, 605);
      message.addExtension(packedSint64Extension, 606L);
      message.addExtension(packedFixed32Extension, 607);
      message.addExtension(packedFixed64Extension, 608L);
      message.addExtension(packedSfixed32Extension, 609);
      message.addExtension(packedSfixed64Extension, 610L);
      message.addExtension(packedFloatExtension, 611F);
      message.addExtension(packedDoubleExtension, 612D);
      message.addExtension(packedBoolExtension, true);
      message.addExtension(packedEnumExtension, ForeignEnum.FOREIGN_BAR);
      // Add a second one of each field.
      message.addExtension(packedInt32Extension, 701);
      message.addExtension(packedInt64Extension, 702L);
      message.addExtension(packedUint32Extension, 703);
      message.addExtension(packedUint64Extension, 704L);
      message.addExtension(packedSint32Extension, 705);
      message.addExtension(packedSint64Extension, 706L);
      message.addExtension(packedFixed32Extension, 707);
      message.addExtension(packedFixed64Extension, 708L);
      message.addExtension(packedSfixed32Extension, 709);
      message.addExtension(packedSfixed64Extension, 710L);
      message.addExtension(packedFloatExtension, 711F);
      message.addExtension(packedDoubleExtension, 712D);
      message.addExtension(packedBoolExtension, false);
      message.addExtension(packedEnumExtension, ForeignEnum.FOREIGN_BAZ);
    }
  
    public static void assertPackedExtensionsSet(TestPackedExtensions message) {
      Assert.assertEquals(2, message.getExtensionCount(packedInt32Extension));
      Assert.assertEquals(2, message.getExtensionCount(packedInt64Extension));
      Assert.assertEquals(2, message.getExtensionCount(packedUint32Extension));
      Assert.assertEquals(2, message.getExtensionCount(packedUint64Extension));
      Assert.assertEquals(2, message.getExtensionCount(packedSint32Extension));
      Assert.assertEquals(2, message.getExtensionCount(packedSint64Extension));
      Assert.assertEquals(2, message.getExtensionCount(packedFixed32Extension));
      Assert.assertEquals(2, message.getExtensionCount(packedFixed64Extension));
      Assert.assertEquals(2, message.getExtensionCount(packedSfixed32Extension));
      Assert.assertEquals(2, message.getExtensionCount(packedSfixed64Extension));
      Assert.assertEquals(2, message.getExtensionCount(packedFloatExtension));
      Assert.assertEquals(2, message.getExtensionCount(packedDoubleExtension));
      Assert.assertEquals(2, message.getExtensionCount(packedBoolExtension));
      Assert.assertEquals(2, message.getExtensionCount(packedEnumExtension));
      assertEqualsExactType(601, message.getExtension(packedInt32Extension, 0));
      assertEqualsExactType(602L, message.getExtension(packedInt64Extension, 0));
      assertEqualsExactType(603, message.getExtension(packedUint32Extension, 0));
      assertEqualsExactType(604L, message.getExtension(packedUint64Extension, 0));
      assertEqualsExactType(605, message.getExtension(packedSint32Extension, 0));
      assertEqualsExactType(606L, message.getExtension(packedSint64Extension, 0));
      assertEqualsExactType(607, message.getExtension(packedFixed32Extension, 0));
      assertEqualsExactType(608L, message.getExtension(packedFixed64Extension, 0));
      assertEqualsExactType(609, message.getExtension(packedSfixed32Extension, 0));
      assertEqualsExactType(610L, message.getExtension(packedSfixed64Extension, 0));
      assertEqualsExactType(611F, message.getExtension(packedFloatExtension, 0));
      assertEqualsExactType(612D, message.getExtension(packedDoubleExtension, 0));
      assertEqualsExactType(true, message.getExtension(packedBoolExtension, 0));
      assertEqualsExactType(ForeignEnum.FOREIGN_BAR, message.getExtension(packedEnumExtension, 0));
      assertEqualsExactType(701, message.getExtension(packedInt32Extension, 1));
      assertEqualsExactType(702L, message.getExtension(packedInt64Extension, 1));
      assertEqualsExactType(703, message.getExtension(packedUint32Extension, 1));
      assertEqualsExactType(704L, message.getExtension(packedUint64Extension, 1));
      assertEqualsExactType(705, message.getExtension(packedSint32Extension, 1));
      assertEqualsExactType(706L, message.getExtension(packedSint64Extension, 1));
      assertEqualsExactType(707, message.getExtension(packedFixed32Extension, 1));
      assertEqualsExactType(708L, message.getExtension(packedFixed64Extension, 1));
      assertEqualsExactType(709, message.getExtension(packedSfixed32Extension, 1));
      assertEqualsExactType(710L, message.getExtension(packedSfixed64Extension, 1));
      assertEqualsExactType(711F, message.getExtension(packedFloatExtension, 1));
      assertEqualsExactType(712D, message.getExtension(packedDoubleExtension, 1));
      assertEqualsExactType(false, message.getExtension(packedBoolExtension, 1));
      assertEqualsExactType(ForeignEnum.FOREIGN_BAZ, message.getExtension(packedEnumExtension, 1));
    }
  
    // ===================================================================
    // Lite extensions
  
    /**
     * Assert (using {@code junit.framework.Assert}} that all extensions of {@code message} are set to
     * the values assigned by {@code setAllExtensions}.
     */
    public static void assertAllExtensionsSet(TestAllExtensionsLiteOrBuilder message) {
      Assert.assertTrue(message.hasExtension(optionalInt32ExtensionLite));
      Assert.assertTrue(message.hasExtension(optionalInt64ExtensionLite));
      Assert.assertTrue(message.hasExtension(optionalUint32ExtensionLite));
      Assert.assertTrue(message.hasExtension(optionalUint64ExtensionLite));
      Assert.assertTrue(message.hasExtension(optionalSint32ExtensionLite));
      Assert.assertTrue(message.hasExtension(optionalSint64ExtensionLite));
      Assert.assertTrue(message.hasExtension(optionalFixed32ExtensionLite));
      Assert.assertTrue(message.hasExtension(optionalFixed64ExtensionLite));
      Assert.assertTrue(message.hasExtension(optionalSfixed32ExtensionLite));
      Assert.assertTrue(message.hasExtension(optionalSfixed64ExtensionLite));
      Assert.assertTrue(message.hasExtension(optionalFloatExtensionLite));
      Assert.assertTrue(message.hasExtension(optionalDoubleExtensionLite));
      Assert.assertTrue(message.hasExtension(optionalBoolExtensionLite));
      Assert.assertTrue(message.hasExtension(optionalStringExtensionLite));
      Assert.assertTrue(message.hasExtension(optionalBytesExtensionLite));
  
      Assert.assertTrue(message.hasExtension(optionalGroupExtensionLite));
      Assert.assertTrue(message.hasExtension(optionalNestedMessageExtensionLite));
      Assert.assertTrue(message.hasExtension(optionalForeignMessageExtensionLite));
      Assert.assertTrue(message.hasExtension(optionalImportMessageExtensionLite));
  
      Assert.assertTrue(message.getExtension(optionalGroupExtensionLite).hasA());
      Assert.assertTrue(message.getExtension(optionalNestedMessageExtensionLite).hasBb());
      Assert.assertTrue(message.getExtension(optionalForeignMessageExtensionLite).hasC());
      Assert.assertTrue(message.getExtension(optionalImportMessageExtensionLite).hasD());
  
      Assert.assertTrue(message.hasExtension(optionalNestedEnumExtensionLite));
      Assert.assertTrue(message.hasExtension(optionalForeignEnumExtensionLite));
      Assert.assertTrue(message.hasExtension(optionalImportEnumExtensionLite));
  
      Assert.assertTrue(message.hasExtension(optionalStringPieceExtensionLite));
      Assert.assertTrue(message.hasExtension(optionalCordExtensionLite));
  
      assertEqualsExactType(101, message.getExtension(optionalInt32ExtensionLite));
      assertEqualsExactType(102L, message.getExtension(optionalInt64ExtensionLite));
      assertEqualsExactType(103, message.getExtension(optionalUint32ExtensionLite));
      assertEqualsExactType(104L, message.getExtension(optionalUint64ExtensionLite));
      assertEqualsExactType(105, message.getExtension(optionalSint32ExtensionLite));
      assertEqualsExactType(106L, message.getExtension(optionalSint64ExtensionLite));
      assertEqualsExactType(107, message.getExtension(optionalFixed32ExtensionLite));
      assertEqualsExactType(108L, message.getExtension(optionalFixed64ExtensionLite));
      assertEqualsExactType(109, message.getExtension(optionalSfixed32ExtensionLite));
      assertEqualsExactType(110L, message.getExtension(optionalSfixed64ExtensionLite));
      assertEqualsExactType(111F, message.getExtension(optionalFloatExtensionLite));
      assertEqualsExactType(112D, message.getExtension(optionalDoubleExtensionLite));
      assertEqualsExactType(true, message.getExtension(optionalBoolExtensionLite));
      assertEqualsExactType("115", message.getExtension(optionalStringExtensionLite));
      assertEqualsExactType(toBytes("116"), message.getExtension(optionalBytesExtensionLite));
  
      assertEqualsExactType(117, message.getExtension(optionalGroupExtensionLite).getA());
      assertEqualsExactType(118, message.getExtension(optionalNestedMessageExtensionLite).getBb());
      assertEqualsExactType(119, message.getExtension(optionalForeignMessageExtensionLite).getC());
      assertEqualsExactType(120, message.getExtension(optionalImportMessageExtensionLite).getD());
      assertEqualsExactType(
          126, message.getExtension(optionalPublicImportMessageExtensionLite).getE());
      assertEqualsExactType(127, message.getExtension(optionalLazyMessageExtensionLite).getBb());
  
      assertEqualsExactType(
          TestAllTypesLite.NestedEnum.BAZ, message.getExtension(optionalNestedEnumExtensionLite));
      assertEqualsExactType(
          ForeignEnumLite.FOREIGN_LITE_BAZ, message.getExtension(optionalForeignEnumExtensionLite));
      assertEqualsExactType(
          ImportEnumLite.IMPORT_LITE_BAZ, message.getExtension(optionalImportEnumExtensionLite));
  
      assertEqualsExactType("124", message.getExtension(optionalStringPieceExtensionLite));
      assertEqualsExactType("125", message.getExtension(optionalCordExtensionLite));
  
      // -----------------------------------------------------------------
  
      Assert.assertEquals(2, message.getExtensionCount(repeatedInt32ExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(repeatedInt64ExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(repeatedUint32ExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(repeatedUint64ExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(repeatedSint32ExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(repeatedSint64ExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(repeatedFixed32ExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(repeatedFixed64ExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(repeatedSfixed32ExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(repeatedSfixed64ExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(repeatedFloatExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(repeatedDoubleExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(repeatedBoolExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(repeatedStringExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(repeatedBytesExtensionLite));
  
      Assert.assertEquals(2, message.getExtensionCount(repeatedGroupExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(repeatedNestedMessageExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(repeatedForeignMessageExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(repeatedImportMessageExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(repeatedLazyMessageExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(repeatedNestedEnumExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(repeatedForeignEnumExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(repeatedImportEnumExtensionLite));
  
      Assert.assertEquals(2, message.getExtensionCount(repeatedStringPieceExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(repeatedCordExtensionLite));
  
      assertEqualsExactType(201, message.getExtension(repeatedInt32ExtensionLite, 0));
      assertEqualsExactType(202L, message.getExtension(repeatedInt64ExtensionLite, 0));
      assertEqualsExactType(203, message.getExtension(repeatedUint32ExtensionLite, 0));
      assertEqualsExactType(204L, message.getExtension(repeatedUint64ExtensionLite, 0));
      assertEqualsExactType(205, message.getExtension(repeatedSint32ExtensionLite, 0));
      assertEqualsExactType(206L, message.getExtension(repeatedSint64ExtensionLite, 0));
      assertEqualsExactType(207, message.getExtension(repeatedFixed32ExtensionLite, 0));
      assertEqualsExactType(208L, message.getExtension(repeatedFixed64ExtensionLite, 0));
      assertEqualsExactType(209, message.getExtension(repeatedSfixed32ExtensionLite, 0));
      assertEqualsExactType(210L, message.getExtension(repeatedSfixed64ExtensionLite, 0));
      assertEqualsExactType(211F, message.getExtension(repeatedFloatExtensionLite, 0));
      assertEqualsExactType(212D, message.getExtension(repeatedDoubleExtensionLite, 0));
      assertEqualsExactType(true, message.getExtension(repeatedBoolExtensionLite, 0));
      assertEqualsExactType("215", message.getExtension(repeatedStringExtensionLite, 0));
      assertEqualsExactType(toBytes("216"), message.getExtension(repeatedBytesExtensionLite, 0));
  
      assertEqualsExactType(217, message.getExtension(repeatedGroupExtensionLite, 0).getA());
      assertEqualsExactType(218, message.getExtension(repeatedNestedMessageExtensionLite, 0).getBb());
      assertEqualsExactType(219, message.getExtension(repeatedForeignMessageExtensionLite, 0).getC());
      assertEqualsExactType(220, message.getExtension(repeatedImportMessageExtensionLite, 0).getD());
      assertEqualsExactType(227, message.getExtension(repeatedLazyMessageExtensionLite, 0).getBb());
  
      assertEqualsExactType(
          TestAllTypesLite.NestedEnum.BAR, message.getExtension(repeatedNestedEnumExtensionLite, 0));
      assertEqualsExactType(
          ForeignEnumLite.FOREIGN_LITE_BAR,
          message.getExtension(repeatedForeignEnumExtensionLite, 0));
      assertEqualsExactType(
          ImportEnumLite.IMPORT_LITE_BAR, message.getExtension(repeatedImportEnumExtensionLite, 0));
  
      assertEqualsExactType("224", message.getExtension(repeatedStringPieceExtensionLite, 0));
      assertEqualsExactType("225", message.getExtension(repeatedCordExtensionLite, 0));
  
      assertEqualsExactType(301, message.getExtension(repeatedInt32ExtensionLite, 1));
      assertEqualsExactType(302L, message.getExtension(repeatedInt64ExtensionLite, 1));
      assertEqualsExactType(303, message.getExtension(repeatedUint32ExtensionLite, 1));
      assertEqualsExactType(304L, message.getExtension(repeatedUint64ExtensionLite, 1));
      assertEqualsExactType(305, message.getExtension(repeatedSint32ExtensionLite, 1));
      assertEqualsExactType(306L, message.getExtension(repeatedSint64ExtensionLite, 1));
      assertEqualsExactType(307, message.getExtension(repeatedFixed32ExtensionLite, 1));
      assertEqualsExactType(308L, message.getExtension(repeatedFixed64ExtensionLite, 1));
      assertEqualsExactType(309, message.getExtension(repeatedSfixed32ExtensionLite, 1));
      assertEqualsExactType(310L, message.getExtension(repeatedSfixed64ExtensionLite, 1));
      assertEqualsExactType(311F, message.getExtension(repeatedFloatExtensionLite, 1));
      assertEqualsExactType(312D, message.getExtension(repeatedDoubleExtensionLite, 1));
      assertEqualsExactType(false, message.getExtension(repeatedBoolExtensionLite, 1));
      assertEqualsExactType("315", message.getExtension(repeatedStringExtensionLite, 1));
      assertEqualsExactType(toBytes("316"), message.getExtension(repeatedBytesExtensionLite, 1));
  
      assertEqualsExactType(317, message.getExtension(repeatedGroupExtensionLite, 1).getA());
      assertEqualsExactType(318, message.getExtension(repeatedNestedMessageExtensionLite, 1).getBb());
      assertEqualsExactType(319, message.getExtension(repeatedForeignMessageExtensionLite, 1).getC());
      assertEqualsExactType(320, message.getExtension(repeatedImportMessageExtensionLite, 1).getD());
      assertEqualsExactType(327, message.getExtension(repeatedLazyMessageExtensionLite, 1).getBb());
  
      assertEqualsExactType(
          TestAllTypesLite.NestedEnum.BAZ, message.getExtension(repeatedNestedEnumExtensionLite, 1));
      assertEqualsExactType(
          ForeignEnumLite.FOREIGN_LITE_BAZ,
          message.getExtension(repeatedForeignEnumExtensionLite, 1));
      assertEqualsExactType(
          ImportEnumLite.IMPORT_LITE_BAZ, message.getExtension(repeatedImportEnumExtensionLite, 1));
  
      assertEqualsExactType("324", message.getExtension(repeatedStringPieceExtensionLite, 1));
      assertEqualsExactType("325", message.getExtension(repeatedCordExtensionLite, 1));
  
      // -----------------------------------------------------------------
  
      Assert.assertTrue(message.hasExtension(defaultInt32ExtensionLite));
      Assert.assertTrue(message.hasExtension(defaultInt64ExtensionLite));
      Assert.assertTrue(message.hasExtension(defaultUint32ExtensionLite));
      Assert.assertTrue(message.hasExtension(defaultUint64ExtensionLite));
      Assert.assertTrue(message.hasExtension(defaultSint32ExtensionLite));
      Assert.assertTrue(message.hasExtension(defaultSint64ExtensionLite));
      Assert.assertTrue(message.hasExtension(defaultFixed32ExtensionLite));
      Assert.assertTrue(message.hasExtension(defaultFixed64ExtensionLite));
      Assert.assertTrue(message.hasExtension(defaultSfixed32ExtensionLite));
      Assert.assertTrue(message.hasExtension(defaultSfixed64ExtensionLite));
      Assert.assertTrue(message.hasExtension(defaultFloatExtensionLite));
      Assert.assertTrue(message.hasExtension(defaultDoubleExtensionLite));
      Assert.assertTrue(message.hasExtension(defaultBoolExtensionLite));
      Assert.assertTrue(message.hasExtension(defaultStringExtensionLite));
      Assert.assertTrue(message.hasExtension(defaultBytesExtensionLite));
  
      Assert.assertTrue(message.hasExtension(defaultNestedEnumExtensionLite));
      Assert.assertTrue(message.hasExtension(defaultForeignEnumExtensionLite));
      Assert.assertTrue(message.hasExtension(defaultImportEnumExtensionLite));
  
      Assert.assertTrue(message.hasExtension(defaultStringPieceExtensionLite));
      Assert.assertTrue(message.hasExtension(defaultCordExtensionLite));
  
      assertEqualsExactType(401, message.getExtension(defaultInt32ExtensionLite));
      assertEqualsExactType(402L, message.getExtension(defaultInt64ExtensionLite));
      assertEqualsExactType(403, message.getExtension(defaultUint32ExtensionLite));
      assertEqualsExactType(404L, message.getExtension(defaultUint64ExtensionLite));
      assertEqualsExactType(405, message.getExtension(defaultSint32ExtensionLite));
      assertEqualsExactType(406L, message.getExtension(defaultSint64ExtensionLite));
      assertEqualsExactType(407, message.getExtension(defaultFixed32ExtensionLite));
      assertEqualsExactType(408L, message.getExtension(defaultFixed64ExtensionLite));
      assertEqualsExactType(409, message.getExtension(defaultSfixed32ExtensionLite));
      assertEqualsExactType(410L, message.getExtension(defaultSfixed64ExtensionLite));
      assertEqualsExactType(411F, message.getExtension(defaultFloatExtensionLite));
      assertEqualsExactType(412D, message.getExtension(defaultDoubleExtensionLite));
      assertEqualsExactType(false, message.getExtension(defaultBoolExtensionLite));
      assertEqualsExactType("415", message.getExtension(defaultStringExtensionLite));
      assertEqualsExactType(toBytes("416"), message.getExtension(defaultBytesExtensionLite));
  
      assertEqualsExactType(
          TestAllTypesLite.NestedEnum.FOO, message.getExtension(defaultNestedEnumExtensionLite));
      assertEqualsExactType(
          ForeignEnumLite.FOREIGN_LITE_FOO, message.getExtension(defaultForeignEnumExtensionLite));
      assertEqualsExactType(
          ImportEnumLite.IMPORT_LITE_FOO, message.getExtension(defaultImportEnumExtensionLite));
  
      assertEqualsExactType("424", message.getExtension(defaultStringPieceExtensionLite));
      assertEqualsExactType("425", message.getExtension(defaultCordExtensionLite));
  
      Assert.assertTrue(message.hasExtension(oneofBytesExtensionLite));
  
      assertEqualsExactType(toBytes("604"), message.getExtension(oneofBytesExtensionLite));
    }
  
    // -------------------------------------------------------------------
  
    /**
     * Assert (using {@code junit.framework.Assert}} that all extensions of {@code message} are
     * cleared, and that getting the extensions returns their default values.
     */
    public static void assertExtensionsClear(TestAllExtensionsLiteOrBuilder message) {
      // hasBlah() should initially be false for all optional fields.
      Assert.assertFalse(message.hasExtension(optionalInt32ExtensionLite));
      Assert.assertFalse(message.hasExtension(optionalInt64ExtensionLite));
      Assert.assertFalse(message.hasExtension(optionalUint32ExtensionLite));
      Assert.assertFalse(message.hasExtension(optionalUint64ExtensionLite));
      Assert.assertFalse(message.hasExtension(optionalSint32ExtensionLite));
      Assert.assertFalse(message.hasExtension(optionalSint64ExtensionLite));
      Assert.assertFalse(message.hasExtension(optionalFixed32ExtensionLite));
      Assert.assertFalse(message.hasExtension(optionalFixed64ExtensionLite));
      Assert.assertFalse(message.hasExtension(optionalSfixed32ExtensionLite));
      Assert.assertFalse(message.hasExtension(optionalSfixed64ExtensionLite));
      Assert.assertFalse(message.hasExtension(optionalFloatExtensionLite));
      Assert.assertFalse(message.hasExtension(optionalDoubleExtensionLite));
      Assert.assertFalse(message.hasExtension(optionalBoolExtensionLite));
      Assert.assertFalse(message.hasExtension(optionalStringExtensionLite));
      Assert.assertFalse(message.hasExtension(optionalBytesExtensionLite));
  
      Assert.assertFalse(message.hasExtension(optionalGroupExtensionLite));
      Assert.assertFalse(message.hasExtension(optionalNestedMessageExtensionLite));
      Assert.assertFalse(message.hasExtension(optionalForeignMessageExtensionLite));
      Assert.assertFalse(message.hasExtension(optionalImportMessageExtensionLite));
      Assert.assertFalse(message.hasExtension(optionalPublicImportMessageExtensionLite));
      Assert.assertFalse(message.hasExtension(optionalLazyMessageExtensionLite));
  
      Assert.assertFalse(message.hasExtension(optionalNestedEnumExtensionLite));
      Assert.assertFalse(message.hasExtension(optionalForeignEnumExtensionLite));
      Assert.assertFalse(message.hasExtension(optionalImportEnumExtensionLite));
  
      Assert.assertFalse(message.hasExtension(optionalStringPieceExtensionLite));
      Assert.assertFalse(message.hasExtension(optionalCordExtensionLite));
  
      // Optional fields without defaults are set to zero or something like it.
      assertEqualsExactType(0, message.getExtension(optionalInt32ExtensionLite));
      assertEqualsExactType(0L, message.getExtension(optionalInt64ExtensionLite));
      assertEqualsExactType(0, message.getExtension(optionalUint32ExtensionLite));
      assertEqualsExactType(0L, message.getExtension(optionalUint64ExtensionLite));
      assertEqualsExactType(0, message.getExtension(optionalSint32ExtensionLite));
      assertEqualsExactType(0L, message.getExtension(optionalSint64ExtensionLite));
      assertEqualsExactType(0, message.getExtension(optionalFixed32ExtensionLite));
      assertEqualsExactType(0L, message.getExtension(optionalFixed64ExtensionLite));
      assertEqualsExactType(0, message.getExtension(optionalSfixed32ExtensionLite));
      assertEqualsExactType(0L, message.getExtension(optionalSfixed64ExtensionLite));
      assertEqualsExactType(0F, message.getExtension(optionalFloatExtensionLite));
      assertEqualsExactType(0D, message.getExtension(optionalDoubleExtensionLite));
      assertEqualsExactType(false, message.getExtension(optionalBoolExtensionLite));
      assertEqualsExactType("", message.getExtension(optionalStringExtensionLite));
      assertEqualsExactType(ByteString.EMPTY, message.getExtension(optionalBytesExtensionLite));
  
      // Embedded messages should also be clear.
      Assert.assertFalse(message.getExtension(optionalGroupExtensionLite).hasA());
      Assert.assertFalse(message.getExtension(optionalNestedMessageExtensionLite).hasBb());
      Assert.assertFalse(message.getExtension(optionalForeignMessageExtensionLite).hasC());
      Assert.assertFalse(message.getExtension(optionalImportMessageExtensionLite).hasD());
      Assert.assertFalse(message.getExtension(optionalPublicImportMessageExtensionLite).hasE());
      Assert.assertFalse(message.getExtension(optionalLazyMessageExtensionLite).hasBb());
  
      assertEqualsExactType(0, message.getExtension(optionalGroupExtensionLite).getA());
      assertEqualsExactType(0, message.getExtension(optionalNestedMessageExtensionLite).getBb());
      assertEqualsExactType(0, message.getExtension(optionalForeignMessageExtensionLite).getC());
      assertEqualsExactType(0, message.getExtension(optionalImportMessageExtensionLite).getD());
      assertEqualsExactType(0, message.getExtension(optionalPublicImportMessageExtensionLite).getE());
      assertEqualsExactType(0, message.getExtension(optionalLazyMessageExtensionLite).getBb());
  
      // Enums without defaults are set to the first value in the enum.
      assertEqualsExactType(
          TestAllTypesLite.NestedEnum.FOO, message.getExtension(optionalNestedEnumExtensionLite));
      assertEqualsExactType(
          ForeignEnumLite.FOREIGN_LITE_FOO, message.getExtension(optionalForeignEnumExtensionLite));
      assertEqualsExactType(
          ImportEnumLite.IMPORT_LITE_FOO, message.getExtension(optionalImportEnumExtensionLite));
  
      assertEqualsExactType("", message.getExtension(optionalStringPieceExtensionLite));
      assertEqualsExactType("", message.getExtension(optionalCordExtensionLite));
  
      // Repeated fields are empty.
      Assert.assertEquals(0, message.getExtensionCount(repeatedInt32ExtensionLite));
      Assert.assertEquals(0, message.getExtensionCount(repeatedInt64ExtensionLite));
      Assert.assertEquals(0, message.getExtensionCount(repeatedUint32ExtensionLite));
      Assert.assertEquals(0, message.getExtensionCount(repeatedUint64ExtensionLite));
      Assert.assertEquals(0, message.getExtensionCount(repeatedSint32ExtensionLite));
      Assert.assertEquals(0, message.getExtensionCount(repeatedSint64ExtensionLite));
      Assert.assertEquals(0, message.getExtensionCount(repeatedFixed32ExtensionLite));
      Assert.assertEquals(0, message.getExtensionCount(repeatedFixed64ExtensionLite));
      Assert.assertEquals(0, message.getExtensionCount(repeatedSfixed32ExtensionLite));
      Assert.assertEquals(0, message.getExtensionCount(repeatedSfixed64ExtensionLite));
      Assert.assertEquals(0, message.getExtensionCount(repeatedFloatExtensionLite));
      Assert.assertEquals(0, message.getExtensionCount(repeatedDoubleExtensionLite));
      Assert.assertEquals(0, message.getExtensionCount(repeatedBoolExtensionLite));
      Assert.assertEquals(0, message.getExtensionCount(repeatedStringExtensionLite));
      Assert.assertEquals(0, message.getExtensionCount(repeatedBytesExtensionLite));
  
      Assert.assertEquals(0, message.getExtensionCount(repeatedGroupExtensionLite));
      Assert.assertEquals(0, message.getExtensionCount(repeatedNestedMessageExtensionLite));
      Assert.assertEquals(0, message.getExtensionCount(repeatedForeignMessageExtensionLite));
      Assert.assertEquals(0, message.getExtensionCount(repeatedImportMessageExtensionLite));
      Assert.assertEquals(0, message.getExtensionCount(repeatedLazyMessageExtensionLite));
      Assert.assertEquals(0, message.getExtensionCount(repeatedNestedEnumExtensionLite));
      Assert.assertEquals(0, message.getExtensionCount(repeatedForeignEnumExtensionLite));
      Assert.assertEquals(0, message.getExtensionCount(repeatedImportEnumExtensionLite));
  
      Assert.assertEquals(0, message.getExtensionCount(repeatedStringPieceExtensionLite));
      Assert.assertEquals(0, message.getExtensionCount(repeatedCordExtensionLite));
  
      // hasBlah() should also be false for all default fields.
      Assert.assertFalse(message.hasExtension(defaultInt32ExtensionLite));
      Assert.assertFalse(message.hasExtension(defaultInt64ExtensionLite));
      Assert.assertFalse(message.hasExtension(defaultUint32ExtensionLite));
      Assert.assertFalse(message.hasExtension(defaultUint64ExtensionLite));
      Assert.assertFalse(message.hasExtension(defaultSint32ExtensionLite));
      Assert.assertFalse(message.hasExtension(defaultSint64ExtensionLite));
      Assert.assertFalse(message.hasExtension(defaultFixed32ExtensionLite));
      Assert.assertFalse(message.hasExtension(defaultFixed64ExtensionLite));
      Assert.assertFalse(message.hasExtension(defaultSfixed32ExtensionLite));
      Assert.assertFalse(message.hasExtension(defaultSfixed64ExtensionLite));
      Assert.assertFalse(message.hasExtension(defaultFloatExtensionLite));
      Assert.assertFalse(message.hasExtension(defaultDoubleExtensionLite));
      Assert.assertFalse(message.hasExtension(defaultBoolExtensionLite));
      Assert.assertFalse(message.hasExtension(defaultStringExtensionLite));
      Assert.assertFalse(message.hasExtension(defaultBytesExtensionLite));
  
      Assert.assertFalse(message.hasExtension(defaultNestedEnumExtensionLite));
      Assert.assertFalse(message.hasExtension(defaultForeignEnumExtensionLite));
      Assert.assertFalse(message.hasExtension(defaultImportEnumExtensionLite));
  
      Assert.assertFalse(message.hasExtension(defaultStringPieceExtensionLite));
      Assert.assertFalse(message.hasExtension(defaultCordExtensionLite));
  
      // Fields with defaults have their default values (duh).
      assertEqualsExactType(41, message.getExtension(defaultInt32ExtensionLite));
      assertEqualsExactType(42L, message.getExtension(defaultInt64ExtensionLite));
      assertEqualsExactType(43, message.getExtension(defaultUint32ExtensionLite));
      assertEqualsExactType(44L, message.getExtension(defaultUint64ExtensionLite));
      assertEqualsExactType(-45, message.getExtension(defaultSint32ExtensionLite));
      assertEqualsExactType(46L, message.getExtension(defaultSint64ExtensionLite));
      assertEqualsExactType(47, message.getExtension(defaultFixed32ExtensionLite));
      assertEqualsExactType(48L, message.getExtension(defaultFixed64ExtensionLite));
      assertEqualsExactType(49, message.getExtension(defaultSfixed32ExtensionLite));
      assertEqualsExactType(-50L, message.getExtension(defaultSfixed64ExtensionLite));
      assertEqualsExactType(51.5F, message.getExtension(defaultFloatExtensionLite));
      assertEqualsExactType(52e3D, message.getExtension(defaultDoubleExtensionLite));
      assertEqualsExactType(true, message.getExtension(defaultBoolExtensionLite));
      assertEqualsExactType("hello", message.getExtension(defaultStringExtensionLite));
      assertEqualsExactType(toBytes("world"), message.getExtension(defaultBytesExtensionLite));
  
      assertEqualsExactType(
          TestAllTypesLite.NestedEnum.BAR, message.getExtension(defaultNestedEnumExtensionLite));
      assertEqualsExactType(
          ForeignEnumLite.FOREIGN_LITE_BAR, message.getExtension(defaultForeignEnumExtensionLite));
      assertEqualsExactType(
          ImportEnumLite.IMPORT_LITE_BAR, message.getExtension(defaultImportEnumExtensionLite));
  
      assertEqualsExactType("abc", message.getExtension(defaultStringPieceExtensionLite));
      assertEqualsExactType("123", message.getExtension(defaultCordExtensionLite));
  
      Assert.assertFalse(message.hasExtension(oneofUint32ExtensionLite));
      Assert.assertFalse(message.hasExtension(oneofNestedMessageExtensionLite));
      Assert.assertFalse(message.hasExtension(oneofStringExtensionLite));
      Assert.assertFalse(message.hasExtension(oneofBytesExtensionLite));
    }
  
    // -------------------------------------------------------------------
  
    /**
     * Assert (using {@code junit.framework.Assert}} that all extensions of {@code message} are set to
     * the values assigned by {@code setAllExtensions} followed by {@code modifyRepeatedExtensions}.
     */
    public static void assertRepeatedExtensionsModified(TestAllExtensionsLiteOrBuilder message) {
      // ModifyRepeatedFields only sets the second repeated element of each
      // field.  In addition to verifying this, we also verify that the first
      // element and size were *not* modified.
      Assert.assertEquals(2, message.getExtensionCount(repeatedInt32ExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(repeatedInt64ExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(repeatedUint32ExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(repeatedUint64ExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(repeatedSint32ExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(repeatedSint64ExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(repeatedFixed32ExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(repeatedFixed64ExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(repeatedSfixed32ExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(repeatedSfixed64ExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(repeatedFloatExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(repeatedDoubleExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(repeatedBoolExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(repeatedStringExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(repeatedBytesExtensionLite));
  
      Assert.assertEquals(2, message.getExtensionCount(repeatedGroupExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(repeatedNestedMessageExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(repeatedForeignMessageExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(repeatedImportMessageExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(repeatedLazyMessageExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(repeatedNestedEnumExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(repeatedForeignEnumExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(repeatedImportEnumExtensionLite));
  
      Assert.assertEquals(2, message.getExtensionCount(repeatedStringPieceExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(repeatedCordExtensionLite));
  
      assertEqualsExactType(201, message.getExtension(repeatedInt32ExtensionLite, 0));
      assertEqualsExactType(202L, message.getExtension(repeatedInt64ExtensionLite, 0));
      assertEqualsExactType(203, message.getExtension(repeatedUint32ExtensionLite, 0));
      assertEqualsExactType(204L, message.getExtension(repeatedUint64ExtensionLite, 0));
      assertEqualsExactType(205, message.getExtension(repeatedSint32ExtensionLite, 0));
      assertEqualsExactType(206L, message.getExtension(repeatedSint64ExtensionLite, 0));
      assertEqualsExactType(207, message.getExtension(repeatedFixed32ExtensionLite, 0));
      assertEqualsExactType(208L, message.getExtension(repeatedFixed64ExtensionLite, 0));
      assertEqualsExactType(209, message.getExtension(repeatedSfixed32ExtensionLite, 0));
      assertEqualsExactType(210L, message.getExtension(repeatedSfixed64ExtensionLite, 0));
      assertEqualsExactType(211F, message.getExtension(repeatedFloatExtensionLite, 0));
      assertEqualsExactType(212D, message.getExtension(repeatedDoubleExtensionLite, 0));
      assertEqualsExactType(true, message.getExtension(repeatedBoolExtensionLite, 0));
      assertEqualsExactType("215", message.getExtension(repeatedStringExtensionLite, 0));
      assertEqualsExactType(toBytes("216"), message.getExtension(repeatedBytesExtensionLite, 0));
  
      assertEqualsExactType(217, message.getExtension(repeatedGroupExtensionLite, 0).getA());
      assertEqualsExactType(218, message.getExtension(repeatedNestedMessageExtensionLite, 0).getBb());
      assertEqualsExactType(219, message.getExtension(repeatedForeignMessageExtensionLite, 0).getC());
      assertEqualsExactType(220, message.getExtension(repeatedImportMessageExtensionLite, 0).getD());
      assertEqualsExactType(227, message.getExtension(repeatedLazyMessageExtensionLite, 0).getBb());
  
      assertEqualsExactType(
          TestAllTypesLite.NestedEnum.BAR, message.getExtension(repeatedNestedEnumExtensionLite, 0));
      assertEqualsExactType(
          ForeignEnumLite.FOREIGN_LITE_BAR,
          message.getExtension(repeatedForeignEnumExtensionLite, 0));
      assertEqualsExactType(
          ImportEnumLite.IMPORT_LITE_BAR, message.getExtension(repeatedImportEnumExtensionLite, 0));
  
      assertEqualsExactType("224", message.getExtension(repeatedStringPieceExtensionLite, 0));
      assertEqualsExactType("225", message.getExtension(repeatedCordExtensionLite, 0));
  
      // Actually verify the second (modified) elements now.
      assertEqualsExactType(501, message.getExtension(repeatedInt32ExtensionLite, 1));
      assertEqualsExactType(502L, message.getExtension(repeatedInt64ExtensionLite, 1));
      assertEqualsExactType(503, message.getExtension(repeatedUint32ExtensionLite, 1));
      assertEqualsExactType(504L, message.getExtension(repeatedUint64ExtensionLite, 1));
      assertEqualsExactType(505, message.getExtension(repeatedSint32ExtensionLite, 1));
      assertEqualsExactType(506L, message.getExtension(repeatedSint64ExtensionLite, 1));
      assertEqualsExactType(507, message.getExtension(repeatedFixed32ExtensionLite, 1));
      assertEqualsExactType(508L, message.getExtension(repeatedFixed64ExtensionLite, 1));
      assertEqualsExactType(509, message.getExtension(repeatedSfixed32ExtensionLite, 1));
      assertEqualsExactType(510L, message.getExtension(repeatedSfixed64ExtensionLite, 1));
      assertEqualsExactType(511F, message.getExtension(repeatedFloatExtensionLite, 1));
      assertEqualsExactType(512D, message.getExtension(repeatedDoubleExtensionLite, 1));
      assertEqualsExactType(true, message.getExtension(repeatedBoolExtensionLite, 1));
      assertEqualsExactType("515", message.getExtension(repeatedStringExtensionLite, 1));
      assertEqualsExactType(toBytes("516"), message.getExtension(repeatedBytesExtensionLite, 1));
  
      assertEqualsExactType(517, message.getExtension(repeatedGroupExtensionLite, 1).getA());
      assertEqualsExactType(518, message.getExtension(repeatedNestedMessageExtensionLite, 1).getBb());
      assertEqualsExactType(519, message.getExtension(repeatedForeignMessageExtensionLite, 1).getC());
      assertEqualsExactType(520, message.getExtension(repeatedImportMessageExtensionLite, 1).getD());
      assertEqualsExactType(527, message.getExtension(repeatedLazyMessageExtensionLite, 1).getBb());
  
      assertEqualsExactType(
          TestAllTypesLite.NestedEnum.FOO, message.getExtension(repeatedNestedEnumExtensionLite, 1));
      assertEqualsExactType(
          ForeignEnumLite.FOREIGN_LITE_FOO,
          message.getExtension(repeatedForeignEnumExtensionLite, 1));
      assertEqualsExactType(
          ImportEnumLite.IMPORT_LITE_FOO, message.getExtension(repeatedImportEnumExtensionLite, 1));
  
      assertEqualsExactType("524", message.getExtension(repeatedStringPieceExtensionLite, 1));
      assertEqualsExactType("525", message.getExtension(repeatedCordExtensionLite, 1));
    }
  
    public static void assertPackedExtensionsSet(TestPackedExtensionsLite message) {
      Assert.assertEquals(2, message.getExtensionCount(packedInt32ExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(packedInt64ExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(packedUint32ExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(packedUint64ExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(packedSint32ExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(packedSint64ExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(packedFixed32ExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(packedFixed64ExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(packedSfixed32ExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(packedSfixed64ExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(packedFloatExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(packedDoubleExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(packedBoolExtensionLite));
      Assert.assertEquals(2, message.getExtensionCount(packedEnumExtensionLite));
      assertEqualsExactType(601, message.getExtension(packedInt32ExtensionLite, 0));
      assertEqualsExactType(602L, message.getExtension(packedInt64ExtensionLite, 0));
      assertEqualsExactType(603, message.getExtension(packedUint32ExtensionLite, 0));
      assertEqualsExactType(604L, message.getExtension(packedUint64ExtensionLite, 0));
      assertEqualsExactType(605, message.getExtension(packedSint32ExtensionLite, 0));
      assertEqualsExactType(606L, message.getExtension(packedSint64ExtensionLite, 0));
      assertEqualsExactType(607, message.getExtension(packedFixed32ExtensionLite, 0));
      assertEqualsExactType(608L, message.getExtension(packedFixed64ExtensionLite, 0));
      assertEqualsExactType(609, message.getExtension(packedSfixed32ExtensionLite, 0));
      assertEqualsExactType(610L, message.getExtension(packedSfixed64ExtensionLite, 0));
      assertEqualsExactType(611F, message.getExtension(packedFloatExtensionLite, 0));
      assertEqualsExactType(612D, message.getExtension(packedDoubleExtensionLite, 0));
      assertEqualsExactType(true, message.getExtension(packedBoolExtensionLite, 0));
      assertEqualsExactType(
          ForeignEnumLite.FOREIGN_LITE_BAR, message.getExtension(packedEnumExtensionLite, 0));
      assertEqualsExactType(701, message.getExtension(packedInt32ExtensionLite, 1));
      assertEqualsExactType(702L, message.getExtension(packedInt64ExtensionLite, 1));
      assertEqualsExactType(703, message.getExtension(packedUint32ExtensionLite, 1));
      assertEqualsExactType(704L, message.getExtension(packedUint64ExtensionLite, 1));
      assertEqualsExactType(705, message.getExtension(packedSint32ExtensionLite, 1));
      assertEqualsExactType(706L, message.getExtension(packedSint64ExtensionLite, 1));
      assertEqualsExactType(707, message.getExtension(packedFixed32ExtensionLite, 1));
      assertEqualsExactType(708L, message.getExtension(packedFixed64ExtensionLite, 1));
      assertEqualsExactType(709, message.getExtension(packedSfixed32ExtensionLite, 1));
      assertEqualsExactType(710L, message.getExtension(packedSfixed64ExtensionLite, 1));
      assertEqualsExactType(711F, message.getExtension(packedFloatExtensionLite, 1));
      assertEqualsExactType(712D, message.getExtension(packedDoubleExtensionLite, 1));
      assertEqualsExactType(false, message.getExtension(packedBoolExtensionLite, 1));
      assertEqualsExactType(
          ForeignEnumLite.FOREIGN_LITE_BAZ, message.getExtension(packedEnumExtensionLite, 1));
    }
  
    // ===================================================================
    // oneof
    public static void setOneof(TestOneof2.Builder message) {
      message.setFooLazyMessage(TestOneof2.NestedMessage.newBuilder().setQuxInt(100).build());
      message.setBarString("101");
      message.setBazInt(102);
      message.setBazString("103");
    }
  
    public static void assertOneofSet(TestOneof2 message) {
      Assert.assertTrue(message.hasFooLazyMessage());
      Assert.assertTrue(message.getFooLazyMessage().hasQuxInt());
  
      Assert.assertTrue(message.hasBarString());
      Assert.assertTrue(message.hasBazInt());
      Assert.assertTrue(message.hasBazString());
  
      Assert.assertEquals(100, message.getFooLazyMessage().getQuxInt());
      Assert.assertEquals("101", message.getBarString());
      Assert.assertEquals(102, message.getBazInt());
      Assert.assertEquals("103", message.getBazString());
    }
  
    public static void assertAtMostOneFieldSetOneof(TestOneof2 message) {
      int count = 0;
      if (message.hasFooInt()) {
        ++count;
      }
      if (message.hasFooString()) {
        ++count;
      }
      if (message.hasFooCord()) {
        ++count;
      }
      if (message.hasFooStringPiece()) {
        ++count;
      }
      if (message.hasFooBytes()) {
        ++count;
      }
      if (message.hasFooEnum()) {
        ++count;
      }
      if (message.hasFooMessage()) {
        ++count;
      }
      if (message.hasFooGroup()) {
        ++count;
      }
      if (message.hasFooLazyMessage()) {
        ++count;
      }
      Assert.assertTrue(count <= 1);
  
      count = 0;
      if (message.hasBarInt()) {
        ++count;
      }
      if (message.hasBarString()) {
        ++count;
      }
      if (message.hasBarCord()) {
        ++count;
      }
      if (message.hasBarStringPiece()) {
        ++count;
      }
      if (message.hasBarBytes()) {
        ++count;
      }
      if (message.hasBarEnum()) {
        ++count;
      }
      Assert.assertTrue(count <= 1);
  
      switch (message.getFooCase()) {
        case FOO_INT:
          Assert.assertTrue(message.hasFooInt());
          break;
        case FOO_STRING:
          Assert.assertTrue(message.hasFooString());
          break;
        case FOO_CORD:
          Assert.assertTrue(message.hasFooCord());
          break;
        case FOO_STRING_PIECE:
          Assert.assertTrue(message.hasFooStringPiece());
          break;
        case FOO_BYTES:
          Assert.assertTrue(message.hasFooBytes());
          break;
        case FOO_ENUM:
          Assert.assertTrue(message.hasFooEnum());
          break;
        case FOO_MESSAGE:
          Assert.assertTrue(message.hasFooMessage());
          break;
        case FOOGROUP:
          Assert.assertTrue(message.hasFooGroup());
          break;
        case FOO_LAZY_MESSAGE:
          Assert.assertTrue(message.hasFooLazyMessage());
          break;
        case FOO_NOT_SET:
          break;
          // TODO(b/18683919): go/enum-switch-lsc
      }
    }
  
    // =================================================================
    // BEGIN FULL-RUNTIME
  
    /**
     * Performs the same things that the methods of {@code TestUtil} do, but via the reflection
     * interface. This is its own class because it needs to know what descriptor to use.
     */
    public static class ReflectionTester {
      private final Descriptors.Descriptor baseDescriptor;
      private final ExtensionRegistry extensionRegistry;
  
      private final Descriptors.FileDescriptor file;
      private final Descriptors.FileDescriptor importFile;
      private final Descriptors.FileDescriptor publicImportFile;
  
      private final Descriptors.Descriptor optionalGroup;
      private final Descriptors.Descriptor repeatedGroup;
      private final Descriptors.Descriptor nestedMessage;
      private final Descriptors.Descriptor foreignMessage;
      private final Descriptors.Descriptor importMessage;
      private final Descriptors.Descriptor publicImportMessage;
  
      private final Descriptors.FieldDescriptor groupA;
      private final Descriptors.FieldDescriptor repeatedGroupA;
      private final Descriptors.FieldDescriptor nestedB;
      private final Descriptors.FieldDescriptor foreignC;
      private final Descriptors.FieldDescriptor importD;
      private final Descriptors.FieldDescriptor importE;
  
      private final Descriptors.EnumDescriptor nestedEnum;
      private final Descriptors.EnumDescriptor foreignEnum;
      private final Descriptors.EnumDescriptor importEnum;
  
      private final Descriptors.EnumValueDescriptor nestedFoo;
      private final Descriptors.EnumValueDescriptor nestedBar;
      private final Descriptors.EnumValueDescriptor nestedBaz;
      private final Descriptors.EnumValueDescriptor foreignFoo;
      private final Descriptors.EnumValueDescriptor foreignBar;
      private final Descriptors.EnumValueDescriptor foreignBaz;
      private final Descriptors.EnumValueDescriptor importFoo;
      private final Descriptors.EnumValueDescriptor importBar;
      private final Descriptors.EnumValueDescriptor importBaz;
  
      /**
       * Construct a {@code ReflectionTester} that will expect messages using the given descriptor.
       *
       * <p>Normally {@code baseDescriptor} should be a descriptor for the type {@code TestAllTypes},
       * defined in {@code google/protobuf/unittest.proto}. However, if {@code extensionRegistry}
       * is non-null, then {@code baseDescriptor} should be for {@code TestAllExtensions} instead, and
       * instead of reading and writing normal fields, the tester will read and write extensions. All
       * of {@code TestAllExtensions}' extensions must be registered in the registry.
       */
      public ReflectionTester(
          Descriptors.Descriptor baseDescriptor, ExtensionRegistry extensionRegistry) {
        this.baseDescriptor = baseDescriptor;
        this.extensionRegistry = extensionRegistry;
  
        this.file = baseDescriptor.getFile();
        Assert.assertEquals(1, file.getDependencies().size());
        this.importFile = file.getDependencies().get(0);
        this.publicImportFile = importFile.getDependencies().get(0);
  
        Descriptors.Descriptor testAllTypes;
        if ("TestAllTypes".equals(baseDescriptor.getName())) {
          testAllTypes = baseDescriptor;
        } else {
          testAllTypes = file.findMessageTypeByName("TestAllTypes");
          Assert.assertNotNull(testAllTypes);
        }
  
        if (extensionRegistry == null) {
          // Use testAllTypes, rather than baseDescriptor, to allow
          // initialization using TestPackedTypes descriptors. These objects
          // won't be used by the methods for packed fields.
          this.optionalGroup = testAllTypes.findNestedTypeByName("OptionalGroup");
          this.repeatedGroup = testAllTypes.findNestedTypeByName("RepeatedGroup");
        } else {
          this.optionalGroup = file.findMessageTypeByName("OptionalGroup_extension");
          this.repeatedGroup = file.findMessageTypeByName("RepeatedGroup_extension");
        }
        this.nestedMessage = testAllTypes.findNestedTypeByName("NestedMessage");
        this.foreignMessage = file.findMessageTypeByName("ForeignMessage");
        this.importMessage = importFile.findMessageTypeByName("ImportMessage");
        this.publicImportMessage = publicImportFile.findMessageTypeByName("PublicImportMessage");
  
        this.nestedEnum = testAllTypes.findEnumTypeByName("NestedEnum");
        this.foreignEnum = file.findEnumTypeByName("ForeignEnum");
        this.importEnum = importFile.findEnumTypeByName("ImportEnum");
  
        Assert.assertNotNull(optionalGroup);
        Assert.assertNotNull(repeatedGroup);
        Assert.assertNotNull(nestedMessage);
        Assert.assertNotNull(foreignMessage);
        Assert.assertNotNull(importMessage);
        Assert.assertNotNull(nestedEnum);
        Assert.assertNotNull(foreignEnum);
        Assert.assertNotNull(importEnum);
  
        this.nestedB = nestedMessage.findFieldByName("bb");
        this.foreignC = foreignMessage.findFieldByName("c");
        this.importD = importMessage.findFieldByName("d");
        this.importE = publicImportMessage.findFieldByName("e");
        this.nestedFoo = nestedEnum.findValueByName("FOO");
        this.nestedBar = nestedEnum.findValueByName("BAR");
        this.nestedBaz = nestedEnum.findValueByName("BAZ");
        this.foreignFoo = foreignEnum.findValueByName("FOREIGN_FOO");
        this.foreignBar = foreignEnum.findValueByName("FOREIGN_BAR");
        this.foreignBaz = foreignEnum.findValueByName("FOREIGN_BAZ");
        this.importFoo = importEnum.findValueByName("IMPORT_FOO");
        this.importBar = importEnum.findValueByName("IMPORT_BAR");
        this.importBaz = importEnum.findValueByName("IMPORT_BAZ");
  
        this.groupA = optionalGroup.findFieldByName("a");
        this.repeatedGroupA = repeatedGroup.findFieldByName("a");
  
        Assert.assertNotNull(groupA);
        Assert.assertNotNull(repeatedGroupA);
        Assert.assertNotNull(nestedB);
        Assert.assertNotNull(foreignC);
        Assert.assertNotNull(importD);
        Assert.assertNotNull(importE);
        Assert.assertNotNull(nestedFoo);
        Assert.assertNotNull(nestedBar);
        Assert.assertNotNull(nestedBaz);
        Assert.assertNotNull(foreignFoo);
        Assert.assertNotNull(foreignBar);
        Assert.assertNotNull(foreignBaz);
        Assert.assertNotNull(importFoo);
        Assert.assertNotNull(importBar);
        Assert.assertNotNull(importBaz);
      }
  
      /** Shorthand to get a FieldDescriptor for a field of unittest::TestAllTypes. */
      private Descriptors.FieldDescriptor f(String name) {
        Descriptors.FieldDescriptor result;
        if (extensionRegistry == null) {
          result = baseDescriptor.findFieldByName(name);
        } else {
          result = file.findExtensionByName(name + "_extension");
        }
        Assert.assertNotNull(result);
        return result;
      }
  
      /**
       * Calls {@code parent.newBuilderForField()} or uses the {@code ExtensionRegistry} to find an
       * appropriate builder, depending on what type is being tested.
       */
      private Message.Builder newBuilderForField(
          Message.Builder parent, Descriptors.FieldDescriptor field) {
        if (extensionRegistry == null) {
          return parent.newBuilderForField(field);
        } else {
          ExtensionRegistry.ExtensionInfo extension =
              extensionRegistry.findImmutableExtensionByNumber(
                  field.getContainingType(), field.getNumber());
          Assert.assertNotNull(extension);
          Assert.assertNotNull(extension.defaultInstance);
          return extension.defaultInstance.newBuilderForType();
        }
      }
  
      // -------------------------------------------------------------------
  
      /**
       * Set every field of {@code message} to the values expected by {@code assertAllFieldsSet()},
       * using the {@link Message.Builder} reflection interface.
       */
      void setAllFieldsViaReflection(Message.Builder message) {
        message.setField(f("optional_int32"), 101);
        message.setField(f("optional_int64"), 102L);
        message.setField(f("optional_uint32"), 103);
        message.setField(f("optional_uint64"), 104L);
        message.setField(f("optional_sint32"), 105);
        message.setField(f("optional_sint64"), 106L);
        message.setField(f("optional_fixed32"), 107);
        message.setField(f("optional_fixed64"), 108L);
        message.setField(f("optional_sfixed32"), 109);
        message.setField(f("optional_sfixed64"), 110L);
        message.setField(f("optional_float"), 111F);
        message.setField(f("optional_double"), 112D);
        message.setField(f("optional_bool"), true);
        message.setField(f("optional_string"), "115");
        message.setField(f("optional_bytes"), toBytes("116"));
  
        message.setField(
            f("optionalgroup"),
            newBuilderForField(message, f("optionalgroup")).setField(groupA, 117).build());
        message.setField(
            f("optional_nested_message"),
            newBuilderForField(message, f("optional_nested_message")).setField(nestedB, 118).build());
        message.setField(
            f("optional_foreign_message"),
            newBuilderForField(message, f("optional_foreign_message"))
                .setField(foreignC, 119)
                .build());
        message.setField(
            f("optional_import_message"),
            newBuilderForField(message, f("optional_import_message")).setField(importD, 120).build());
        message.setField(
            f("optional_public_import_message"),
            newBuilderForField(message, f("optional_public_import_message"))
                .setField(importE, 126)
                .build());
        message.setField(
            f("optional_lazy_message"),
            newBuilderForField(message, f("optional_lazy_message")).setField(nestedB, 127).build());
  
        message.setField(f("optional_nested_enum"), nestedBaz);
        message.setField(f("optional_foreign_enum"), foreignBaz);
        message.setField(f("optional_import_enum"), importBaz);
  
        message.setField(f("optional_string_piece"), "124");
        message.setField(f("optional_cord"), "125");
  
        // -----------------------------------------------------------------
  
        message.addRepeatedField(f("repeated_int32"), 201);
        message.addRepeatedField(f("repeated_int64"), 202L);
        message.addRepeatedField(f("repeated_uint32"), 203);
        message.addRepeatedField(f("repeated_uint64"), 204L);
        message.addRepeatedField(f("repeated_sint32"), 205);
        message.addRepeatedField(f("repeated_sint64"), 206L);
        message.addRepeatedField(f("repeated_fixed32"), 207);
        message.addRepeatedField(f("repeated_fixed64"), 208L);
        message.addRepeatedField(f("repeated_sfixed32"), 209);
        message.addRepeatedField(f("repeated_sfixed64"), 210L);
        message.addRepeatedField(f("repeated_float"), 211F);
        message.addRepeatedField(f("repeated_double"), 212D);
        message.addRepeatedField(f("repeated_bool"), true);
        message.addRepeatedField(f("repeated_string"), "215");
        message.addRepeatedField(f("repeated_bytes"), toBytes("216"));
  
        message.addRepeatedField(
            f("repeatedgroup"),
            newBuilderForField(message, f("repeatedgroup")).setField(repeatedGroupA, 217).build());
        message.addRepeatedField(
            f("repeated_nested_message"),
            newBuilderForField(message, f("repeated_nested_message")).setField(nestedB, 218).build());
        message.addRepeatedField(
            f("repeated_foreign_message"),
            newBuilderForField(message, f("repeated_foreign_message"))
                .setField(foreignC, 219)
                .build());
        message.addRepeatedField(
            f("repeated_import_message"),
            newBuilderForField(message, f("repeated_import_message")).setField(importD, 220).build());
        message.addRepeatedField(
            f("repeated_lazy_message"),
            newBuilderForField(message, f("repeated_lazy_message")).setField(nestedB, 227).build());
  
        message.addRepeatedField(f("repeated_nested_enum"), nestedBar);
        message.addRepeatedField(f("repeated_foreign_enum"), foreignBar);
        message.addRepeatedField(f("repeated_import_enum"), importBar);
  
        message.addRepeatedField(f("repeated_string_piece"), "224");
        message.addRepeatedField(f("repeated_cord"), "225");
  
        // Add a second one of each field.
        message.addRepeatedField(f("repeated_int32"), 301);
        message.addRepeatedField(f("repeated_int64"), 302L);
        message.addRepeatedField(f("repeated_uint32"), 303);
        message.addRepeatedField(f("repeated_uint64"), 304L);
        message.addRepeatedField(f("repeated_sint32"), 305);
        message.addRepeatedField(f("repeated_sint64"), 306L);
        message.addRepeatedField(f("repeated_fixed32"), 307);
        message.addRepeatedField(f("repeated_fixed64"), 308L);
        message.addRepeatedField(f("repeated_sfixed32"), 309);
        message.addRepeatedField(f("repeated_sfixed64"), 310L);
        message.addRepeatedField(f("repeated_float"), 311F);
        message.addRepeatedField(f("repeated_double"), 312D);
        message.addRepeatedField(f("repeated_bool"), false);
        message.addRepeatedField(f("repeated_string"), "315");
        message.addRepeatedField(f("repeated_bytes"), toBytes("316"));
  
        message.addRepeatedField(
            f("repeatedgroup"),
            newBuilderForField(message, f("repeatedgroup")).setField(repeatedGroupA, 317).build());
        message.addRepeatedField(
            f("repeated_nested_message"),
            newBuilderForField(message, f("repeated_nested_message")).setField(nestedB, 318).build());
        message.addRepeatedField(
            f("repeated_foreign_message"),
            newBuilderForField(message, f("repeated_foreign_message"))
                .setField(foreignC, 319)
                .build());
        message.addRepeatedField(
            f("repeated_import_message"),
            newBuilderForField(message, f("repeated_import_message")).setField(importD, 320).build());
        message.addRepeatedField(
            f("repeated_lazy_message"),
            newBuilderForField(message, f("repeated_lazy_message")).setField(nestedB, 327).build());
  
        message.addRepeatedField(f("repeated_nested_enum"), nestedBaz);
        message.addRepeatedField(f("repeated_foreign_enum"), foreignBaz);
        message.addRepeatedField(f("repeated_import_enum"), importBaz);
  
        message.addRepeatedField(f("repeated_string_piece"), "324");
        message.addRepeatedField(f("repeated_cord"), "325");
  
        // -----------------------------------------------------------------
  
        message.setField(f("default_int32"), 401);
        message.setField(f("default_int64"), 402L);
        message.setField(f("default_uint32"), 403);
        message.setField(f("default_uint64"), 404L);
        message.setField(f("default_sint32"), 405);
        message.setField(f("default_sint64"), 406L);
        message.setField(f("default_fixed32"), 407);
        message.setField(f("default_fixed64"), 408L);
        message.setField(f("default_sfixed32"), 409);
        message.setField(f("default_sfixed64"), 410L);
        message.setField(f("default_float"), 411F);
        message.setField(f("default_double"), 412D);
        message.setField(f("default_bool"), false);
        message.setField(f("default_string"), "415");
        message.setField(f("default_bytes"), toBytes("416"));
  
        message.setField(f("default_nested_enum"), nestedFoo);
        message.setField(f("default_foreign_enum"), foreignFoo);
        message.setField(f("default_import_enum"), importFoo);
  
        message.setField(f("default_string_piece"), "424");
        message.setField(f("default_cord"), "425");
  
        message.setField(f("oneof_uint32"), 601);
        message.setField(
            f("oneof_nested_message"),
            newBuilderForField(message, f("oneof_nested_message")).setField(nestedB, 602).build());
        message.setField(f("oneof_string"), "603");
        message.setField(f("oneof_bytes"), toBytes("604"));
      }
  
      // -------------------------------------------------------------------
  
      /**
       * Modify the repeated fields of {@code message} to contain the values expected by {@code
       * assertRepeatedFieldsModified()}, using the {@link Message.Builder} reflection interface.
       */
      void modifyRepeatedFieldsViaReflection(Message.Builder message) {
        message.setRepeatedField(f("repeated_int32"), 1, 501);
        message.setRepeatedField(f("repeated_int64"), 1, 502L);
        message.setRepeatedField(f("repeated_uint32"), 1, 503);
        message.setRepeatedField(f("repeated_uint64"), 1, 504L);
        message.setRepeatedField(f("repeated_sint32"), 1, 505);
        message.setRepeatedField(f("repeated_sint64"), 1, 506L);
        message.setRepeatedField(f("repeated_fixed32"), 1, 507);
        message.setRepeatedField(f("repeated_fixed64"), 1, 508L);
        message.setRepeatedField(f("repeated_sfixed32"), 1, 509);
        message.setRepeatedField(f("repeated_sfixed64"), 1, 510L);
        message.setRepeatedField(f("repeated_float"), 1, 511F);
        message.setRepeatedField(f("repeated_double"), 1, 512D);
        message.setRepeatedField(f("repeated_bool"), 1, true);
        message.setRepeatedField(f("repeated_string"), 1, "515");
        message.setRepeatedField(f("repeated_bytes"), 1, toBytes("516"));
  
        message.setRepeatedField(
            f("repeatedgroup"),
            1,
            newBuilderForField(message, f("repeatedgroup")).setField(repeatedGroupA, 517).build());
        message.setRepeatedField(
            f("repeated_nested_message"),
            1,
            newBuilderForField(message, f("repeated_nested_message")).setField(nestedB, 518).build());
        message.setRepeatedField(
            f("repeated_foreign_message"),
            1,
            newBuilderForField(message, f("repeated_foreign_message"))
                .setField(foreignC, 519)
                .build());
        message.setRepeatedField(
            f("repeated_import_message"),
            1,
            newBuilderForField(message, f("repeated_import_message")).setField(importD, 520).build());
        message.setRepeatedField(
            f("repeated_lazy_message"),
            1,
            newBuilderForField(message, f("repeated_lazy_message")).setField(nestedB, 527).build());
  
        message.setRepeatedField(f("repeated_nested_enum"), 1, nestedFoo);
        message.setRepeatedField(f("repeated_foreign_enum"), 1, foreignFoo);
        message.setRepeatedField(f("repeated_import_enum"), 1, importFoo);
  
        message.setRepeatedField(f("repeated_string_piece"), 1, "524");
        message.setRepeatedField(f("repeated_cord"), 1, "525");
      }
  
      // -------------------------------------------------------------------
  
      /**
       * Assert (using {@code junit.framework.Assert}} that all fields of {@code message} are set to
       * the values assigned by {@code setAllFields}, using the {@link Message} reflection interface.
       */
      public void assertAllFieldsSetViaReflection(MessageOrBuilder message) {
        Assert.assertTrue(message.hasField(f("optional_int32")));
        Assert.assertTrue(message.hasField(f("optional_int64")));
        Assert.assertTrue(message.hasField(f("optional_uint32")));
        Assert.assertTrue(message.hasField(f("optional_uint64")));
        Assert.assertTrue(message.hasField(f("optional_sint32")));
        Assert.assertTrue(message.hasField(f("optional_sint64")));
        Assert.assertTrue(message.hasField(f("optional_fixed32")));
        Assert.assertTrue(message.hasField(f("optional_fixed64")));
        Assert.assertTrue(message.hasField(f("optional_sfixed32")));
        Assert.assertTrue(message.hasField(f("optional_sfixed64")));
        Assert.assertTrue(message.hasField(f("optional_float")));
        Assert.assertTrue(message.hasField(f("optional_double")));
        Assert.assertTrue(message.hasField(f("optional_bool")));
        Assert.assertTrue(message.hasField(f("optional_string")));
        Assert.assertTrue(message.hasField(f("optional_bytes")));
  
        Assert.assertTrue(message.hasField(f("optionalgroup")));
        Assert.assertTrue(message.hasField(f("optional_nested_message")));
        Assert.assertTrue(message.hasField(f("optional_foreign_message")));
        Assert.assertTrue(message.hasField(f("optional_import_message")));
  
        Assert.assertTrue(((Message) message.getField(f("optionalgroup"))).hasField(groupA));
        Assert.assertTrue(
            ((Message) message.getField(f("optional_nested_message"))).hasField(nestedB));
        Assert.assertTrue(
            ((Message) message.getField(f("optional_foreign_message"))).hasField(foreignC));
        Assert.assertTrue(
            ((Message) message.getField(f("optional_import_message"))).hasField(importD));
  
        Assert.assertTrue(message.hasField(f("optional_nested_enum")));
        Assert.assertTrue(message.hasField(f("optional_foreign_enum")));
        Assert.assertTrue(message.hasField(f("optional_import_enum")));
  
        Assert.assertTrue(message.hasField(f("optional_string_piece")));
        Assert.assertTrue(message.hasField(f("optional_cord")));
  
        Assert.assertEquals(101, message.getField(f("optional_int32")));
        Assert.assertEquals(102L, message.getField(f("optional_int64")));
        Assert.assertEquals(103, message.getField(f("optional_uint32")));
        Assert.assertEquals(104L, message.getField(f("optional_uint64")));
        Assert.assertEquals(105, message.getField(f("optional_sint32")));
        Assert.assertEquals(106L, message.getField(f("optional_sint64")));
        Assert.assertEquals(107, message.getField(f("optional_fixed32")));
        Assert.assertEquals(108L, message.getField(f("optional_fixed64")));
        Assert.assertEquals(109, message.getField(f("optional_sfixed32")));
        Assert.assertEquals(110L, message.getField(f("optional_sfixed64")));
        Assert.assertEquals(111F, message.getField(f("optional_float")));
        Assert.assertEquals(112D, message.getField(f("optional_double")));
        Assert.assertEquals(true, message.getField(f("optional_bool")));
        Assert.assertEquals("115", message.getField(f("optional_string")));
        Assert.assertEquals(toBytes("116"), message.getField(f("optional_bytes")));
  
        Assert.assertEquals(117, ((Message) message.getField(f("optionalgroup"))).getField(groupA));
        Assert.assertEquals(
            118, ((Message) message.getField(f("optional_nested_message"))).getField(nestedB));
        Assert.assertEquals(
            119, ((Message) message.getField(f("optional_foreign_message"))).getField(foreignC));
        Assert.assertEquals(
            120, ((Message) message.getField(f("optional_import_message"))).getField(importD));
        Assert.assertEquals(
            126, ((Message) message.getField(f("optional_public_import_message"))).getField(importE));
        Assert.assertEquals(
            127, ((Message) message.getField(f("optional_lazy_message"))).getField(nestedB));
  
        Assert.assertEquals(nestedBaz, message.getField(f("optional_nested_enum")));
        Assert.assertEquals(foreignBaz, message.getField(f("optional_foreign_enum")));
        Assert.assertEquals(importBaz, message.getField(f("optional_import_enum")));
  
        Assert.assertEquals("124", message.getField(f("optional_string_piece")));
        Assert.assertEquals("125", message.getField(f("optional_cord")));
  
        // -----------------------------------------------------------------
  
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_int32")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_int64")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_uint32")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_uint64")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_sint32")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_sint64")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_fixed32")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_fixed64")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_sfixed32")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_sfixed64")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_float")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_double")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_bool")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_string")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_bytes")));
  
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeatedgroup")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_nested_message")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_foreign_message")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_import_message")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_lazy_message")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_nested_enum")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_foreign_enum")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_import_enum")));
  
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_string_piece")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_cord")));
  
        Assert.assertEquals(201, message.getRepeatedField(f("repeated_int32"), 0));
        Assert.assertEquals(202L, message.getRepeatedField(f("repeated_int64"), 0));
        Assert.assertEquals(203, message.getRepeatedField(f("repeated_uint32"), 0));
        Assert.assertEquals(204L, message.getRepeatedField(f("repeated_uint64"), 0));
        Assert.assertEquals(205, message.getRepeatedField(f("repeated_sint32"), 0));
        Assert.assertEquals(206L, message.getRepeatedField(f("repeated_sint64"), 0));
        Assert.assertEquals(207, message.getRepeatedField(f("repeated_fixed32"), 0));
        Assert.assertEquals(208L, message.getRepeatedField(f("repeated_fixed64"), 0));
        Assert.assertEquals(209, message.getRepeatedField(f("repeated_sfixed32"), 0));
        Assert.assertEquals(210L, message.getRepeatedField(f("repeated_sfixed64"), 0));
        Assert.assertEquals(211F, message.getRepeatedField(f("repeated_float"), 0));
        Assert.assertEquals(212D, message.getRepeatedField(f("repeated_double"), 0));
        Assert.assertEquals(true, message.getRepeatedField(f("repeated_bool"), 0));
        Assert.assertEquals("215", message.getRepeatedField(f("repeated_string"), 0));
        Assert.assertEquals(toBytes("216"), message.getRepeatedField(f("repeated_bytes"), 0));
  
        Assert.assertEquals(
            217,
            ((Message) message.getRepeatedField(f("repeatedgroup"), 0)).getField(repeatedGroupA));
        Assert.assertEquals(
            218,
            ((Message) message.getRepeatedField(f("repeated_nested_message"), 0)).getField(nestedB));
        Assert.assertEquals(
            219,
            ((Message) message.getRepeatedField(f("repeated_foreign_message"), 0))
                .getField(foreignC));
        Assert.assertEquals(
            220,
            ((Message) message.getRepeatedField(f("repeated_import_message"), 0)).getField(importD));
        Assert.assertEquals(
            227,
            ((Message) message.getRepeatedField(f("repeated_lazy_message"), 0)).getField(nestedB));
  
        Assert.assertEquals(nestedBar, message.getRepeatedField(f("repeated_nested_enum"), 0));
        Assert.assertEquals(foreignBar, message.getRepeatedField(f("repeated_foreign_enum"), 0));
        Assert.assertEquals(importBar, message.getRepeatedField(f("repeated_import_enum"), 0));
  
        Assert.assertEquals("224", message.getRepeatedField(f("repeated_string_piece"), 0));
        Assert.assertEquals("225", message.getRepeatedField(f("repeated_cord"), 0));
  
        Assert.assertEquals(301, message.getRepeatedField(f("repeated_int32"), 1));
        Assert.assertEquals(302L, message.getRepeatedField(f("repeated_int64"), 1));
        Assert.assertEquals(303, message.getRepeatedField(f("repeated_uint32"), 1));
        Assert.assertEquals(304L, message.getRepeatedField(f("repeated_uint64"), 1));
        Assert.assertEquals(305, message.getRepeatedField(f("repeated_sint32"), 1));
        Assert.assertEquals(306L, message.getRepeatedField(f("repeated_sint64"), 1));
        Assert.assertEquals(307, message.getRepeatedField(f("repeated_fixed32"), 1));
        Assert.assertEquals(308L, message.getRepeatedField(f("repeated_fixed64"), 1));
        Assert.assertEquals(309, message.getRepeatedField(f("repeated_sfixed32"), 1));
        Assert.assertEquals(310L, message.getRepeatedField(f("repeated_sfixed64"), 1));
        Assert.assertEquals(311F, message.getRepeatedField(f("repeated_float"), 1));
        Assert.assertEquals(312D, message.getRepeatedField(f("repeated_double"), 1));
        Assert.assertEquals(false, message.getRepeatedField(f("repeated_bool"), 1));
        Assert.assertEquals("315", message.getRepeatedField(f("repeated_string"), 1));
        Assert.assertEquals(toBytes("316"), message.getRepeatedField(f("repeated_bytes"), 1));
  
        Assert.assertEquals(
            317,
            ((Message) message.getRepeatedField(f("repeatedgroup"), 1)).getField(repeatedGroupA));
        Assert.assertEquals(
            318,
            ((Message) message.getRepeatedField(f("repeated_nested_message"), 1)).getField(nestedB));
        Assert.assertEquals(
            319,
            ((Message) message.getRepeatedField(f("repeated_foreign_message"), 1))
                .getField(foreignC));
        Assert.assertEquals(
            320,
            ((Message) message.getRepeatedField(f("repeated_import_message"), 1)).getField(importD));
        Assert.assertEquals(
            327,
            ((Message) message.getRepeatedField(f("repeated_lazy_message"), 1)).getField(nestedB));
  
        Assert.assertEquals(nestedBaz, message.getRepeatedField(f("repeated_nested_enum"), 1));
        Assert.assertEquals(foreignBaz, message.getRepeatedField(f("repeated_foreign_enum"), 1));
        Assert.assertEquals(importBaz, message.getRepeatedField(f("repeated_import_enum"), 1));
  
        Assert.assertEquals("324", message.getRepeatedField(f("repeated_string_piece"), 1));
        Assert.assertEquals("325", message.getRepeatedField(f("repeated_cord"), 1));
  
        // -----------------------------------------------------------------
  
        Assert.assertTrue(message.hasField(f("default_int32")));
        Assert.assertTrue(message.hasField(f("default_int64")));
        Assert.assertTrue(message.hasField(f("default_uint32")));
        Assert.assertTrue(message.hasField(f("default_uint64")));
        Assert.assertTrue(message.hasField(f("default_sint32")));
        Assert.assertTrue(message.hasField(f("default_sint64")));
        Assert.assertTrue(message.hasField(f("default_fixed32")));
        Assert.assertTrue(message.hasField(f("default_fixed64")));
        Assert.assertTrue(message.hasField(f("default_sfixed32")));
        Assert.assertTrue(message.hasField(f("default_sfixed64")));
        Assert.assertTrue(message.hasField(f("default_float")));
        Assert.assertTrue(message.hasField(f("default_double")));
        Assert.assertTrue(message.hasField(f("default_bool")));
        Assert.assertTrue(message.hasField(f("default_string")));
        Assert.assertTrue(message.hasField(f("default_bytes")));
  
        Assert.assertTrue(message.hasField(f("default_nested_enum")));
        Assert.assertTrue(message.hasField(f("default_foreign_enum")));
        Assert.assertTrue(message.hasField(f("default_import_enum")));
  
        Assert.assertTrue(message.hasField(f("default_string_piece")));
        Assert.assertTrue(message.hasField(f("default_cord")));
  
        Assert.assertEquals(401, message.getField(f("default_int32")));
        Assert.assertEquals(402L, message.getField(f("default_int64")));
        Assert.assertEquals(403, message.getField(f("default_uint32")));
        Assert.assertEquals(404L, message.getField(f("default_uint64")));
        Assert.assertEquals(405, message.getField(f("default_sint32")));
        Assert.assertEquals(406L, message.getField(f("default_sint64")));
        Assert.assertEquals(407, message.getField(f("default_fixed32")));
        Assert.assertEquals(408L, message.getField(f("default_fixed64")));
        Assert.assertEquals(409, message.getField(f("default_sfixed32")));
        Assert.assertEquals(410L, message.getField(f("default_sfixed64")));
        Assert.assertEquals(411F, message.getField(f("default_float")));
        Assert.assertEquals(412D, message.getField(f("default_double")));
        Assert.assertEquals(false, message.getField(f("default_bool")));
        Assert.assertEquals("415", message.getField(f("default_string")));
        Assert.assertEquals(toBytes("416"), message.getField(f("default_bytes")));
  
        Assert.assertEquals(nestedFoo, message.getField(f("default_nested_enum")));
        Assert.assertEquals(foreignFoo, message.getField(f("default_foreign_enum")));
        Assert.assertEquals(importFoo, message.getField(f("default_import_enum")));
  
        Assert.assertEquals("424", message.getField(f("default_string_piece")));
        Assert.assertEquals("425", message.getField(f("default_cord")));
  
        Assert.assertTrue(message.hasField(f("oneof_bytes")));
        Assert.assertEquals(toBytes("604"), message.getField(f("oneof_bytes")));
  
        if (extensionRegistry == null) {
          Assert.assertFalse(message.hasField(f("oneof_uint32")));
          Assert.assertFalse(message.hasField(f("oneof_nested_message")));
          Assert.assertFalse(message.hasField(f("oneof_string")));
        } else {
          Assert.assertTrue(message.hasField(f("oneof_uint32")));
          Assert.assertTrue(message.hasField(f("oneof_nested_message")));
          Assert.assertTrue(message.hasField(f("oneof_string")));
          Assert.assertEquals(601, message.getField(f("oneof_uint32")));
          Assert.assertEquals(
              602,
              ((MessageOrBuilder) message.getField(f("oneof_nested_message"))).getField(nestedB));
          Assert.assertEquals("603", message.getField(f("oneof_string")));
        }
      }
  
      // -------------------------------------------------------------------
  
      /**
       * Assert (using {@code junit.framework.Assert}} that all fields of {@code message} are cleared,
       * and that getting the fields returns their default values, using the {@link Message}
       * reflection interface.
       */
      public void assertClearViaReflection(MessageOrBuilder message) {
        // has_blah() should initially be false for all optional fields.
        Assert.assertFalse(message.hasField(f("optional_int32")));
        Assert.assertFalse(message.hasField(f("optional_int64")));
        Assert.assertFalse(message.hasField(f("optional_uint32")));
        Assert.assertFalse(message.hasField(f("optional_uint64")));
        Assert.assertFalse(message.hasField(f("optional_sint32")));
        Assert.assertFalse(message.hasField(f("optional_sint64")));
        Assert.assertFalse(message.hasField(f("optional_fixed32")));
        Assert.assertFalse(message.hasField(f("optional_fixed64")));
        Assert.assertFalse(message.hasField(f("optional_sfixed32")));
        Assert.assertFalse(message.hasField(f("optional_sfixed64")));
        Assert.assertFalse(message.hasField(f("optional_float")));
        Assert.assertFalse(message.hasField(f("optional_double")));
        Assert.assertFalse(message.hasField(f("optional_bool")));
        Assert.assertFalse(message.hasField(f("optional_string")));
        Assert.assertFalse(message.hasField(f("optional_bytes")));
  
        Assert.assertFalse(message.hasField(f("optionalgroup")));
        Assert.assertFalse(message.hasField(f("optional_nested_message")));
        Assert.assertFalse(message.hasField(f("optional_foreign_message")));
        Assert.assertFalse(message.hasField(f("optional_import_message")));
  
        Assert.assertFalse(message.hasField(f("optional_nested_enum")));
        Assert.assertFalse(message.hasField(f("optional_foreign_enum")));
        Assert.assertFalse(message.hasField(f("optional_import_enum")));
  
        Assert.assertFalse(message.hasField(f("optional_string_piece")));
        Assert.assertFalse(message.hasField(f("optional_cord")));
  
        // Optional fields without defaults are set to zero or something like it.
        Assert.assertEquals(0, message.getField(f("optional_int32")));
        Assert.assertEquals(0L, message.getField(f("optional_int64")));
        Assert.assertEquals(0, message.getField(f("optional_uint32")));
        Assert.assertEquals(0L, message.getField(f("optional_uint64")));
        Assert.assertEquals(0, message.getField(f("optional_sint32")));
        Assert.assertEquals(0L, message.getField(f("optional_sint64")));
        Assert.assertEquals(0, message.getField(f("optional_fixed32")));
        Assert.assertEquals(0L, message.getField(f("optional_fixed64")));
        Assert.assertEquals(0, message.getField(f("optional_sfixed32")));
        Assert.assertEquals(0L, message.getField(f("optional_sfixed64")));
        Assert.assertEquals(0F, message.getField(f("optional_float")));
        Assert.assertEquals(0D, message.getField(f("optional_double")));
        Assert.assertEquals(false, message.getField(f("optional_bool")));
        Assert.assertEquals("", message.getField(f("optional_string")));
        Assert.assertEquals(ByteString.EMPTY, message.getField(f("optional_bytes")));
  
        // Embedded messages should also be clear.
        Assert.assertFalse(((Message) message.getField(f("optionalgroup"))).hasField(groupA));
        Assert.assertFalse(
            ((Message) message.getField(f("optional_nested_message"))).hasField(nestedB));
        Assert.assertFalse(
            ((Message) message.getField(f("optional_foreign_message"))).hasField(foreignC));
        Assert.assertFalse(
            ((Message) message.getField(f("optional_import_message"))).hasField(importD));
        Assert.assertFalse(
            ((Message) message.getField(f("optional_public_import_message"))).hasField(importE));
        Assert.assertFalse(
            ((Message) message.getField(f("optional_lazy_message"))).hasField(nestedB));
  
        Assert.assertEquals(0, ((Message) message.getField(f("optionalgroup"))).getField(groupA));
        Assert.assertEquals(
            0, ((Message) message.getField(f("optional_nested_message"))).getField(nestedB));
        Assert.assertEquals(
            0, ((Message) message.getField(f("optional_foreign_message"))).getField(foreignC));
        Assert.assertEquals(
            0, ((Message) message.getField(f("optional_import_message"))).getField(importD));
        Assert.assertEquals(
            0, ((Message) message.getField(f("optional_public_import_message"))).getField(importE));
        Assert.assertEquals(
            0, ((Message) message.getField(f("optional_lazy_message"))).getField(nestedB));
  
        // Enums without defaults are set to the first value in the enum.
        Assert.assertEquals(nestedFoo, message.getField(f("optional_nested_enum")));
        Assert.assertEquals(foreignFoo, message.getField(f("optional_foreign_enum")));
        Assert.assertEquals(importFoo, message.getField(f("optional_import_enum")));
  
        Assert.assertEquals("", message.getField(f("optional_string_piece")));
        Assert.assertEquals("", message.getField(f("optional_cord")));
  
        // Repeated fields are empty.
        Assert.assertEquals(0, message.getRepeatedFieldCount(f("repeated_int32")));
        Assert.assertEquals(0, message.getRepeatedFieldCount(f("repeated_int64")));
        Assert.assertEquals(0, message.getRepeatedFieldCount(f("repeated_uint32")));
        Assert.assertEquals(0, message.getRepeatedFieldCount(f("repeated_uint64")));
        Assert.assertEquals(0, message.getRepeatedFieldCount(f("repeated_sint32")));
        Assert.assertEquals(0, message.getRepeatedFieldCount(f("repeated_sint64")));
        Assert.assertEquals(0, message.getRepeatedFieldCount(f("repeated_fixed32")));
        Assert.assertEquals(0, message.getRepeatedFieldCount(f("repeated_fixed64")));
        Assert.assertEquals(0, message.getRepeatedFieldCount(f("repeated_sfixed32")));
        Assert.assertEquals(0, message.getRepeatedFieldCount(f("repeated_sfixed64")));
        Assert.assertEquals(0, message.getRepeatedFieldCount(f("repeated_float")));
        Assert.assertEquals(0, message.getRepeatedFieldCount(f("repeated_double")));
        Assert.assertEquals(0, message.getRepeatedFieldCount(f("repeated_bool")));
        Assert.assertEquals(0, message.getRepeatedFieldCount(f("repeated_string")));
        Assert.assertEquals(0, message.getRepeatedFieldCount(f("repeated_bytes")));
  
        Assert.assertEquals(0, message.getRepeatedFieldCount(f("repeatedgroup")));
        Assert.assertEquals(0, message.getRepeatedFieldCount(f("repeated_nested_message")));
        Assert.assertEquals(0, message.getRepeatedFieldCount(f("repeated_foreign_message")));
        Assert.assertEquals(0, message.getRepeatedFieldCount(f("repeated_import_message")));
        Assert.assertEquals(0, message.getRepeatedFieldCount(f("repeated_lazy_message")));
        Assert.assertEquals(0, message.getRepeatedFieldCount(f("repeated_nested_enum")));
        Assert.assertEquals(0, message.getRepeatedFieldCount(f("repeated_foreign_enum")));
        Assert.assertEquals(0, message.getRepeatedFieldCount(f("repeated_import_enum")));
  
        Assert.assertEquals(0, message.getRepeatedFieldCount(f("repeated_string_piece")));
        Assert.assertEquals(0, message.getRepeatedFieldCount(f("repeated_cord")));
  
        // has_blah() should also be false for all default fields.
        Assert.assertFalse(message.hasField(f("default_int32")));
        Assert.assertFalse(message.hasField(f("default_int64")));
        Assert.assertFalse(message.hasField(f("default_uint32")));
        Assert.assertFalse(message.hasField(f("default_uint64")));
        Assert.assertFalse(message.hasField(f("default_sint32")));
        Assert.assertFalse(message.hasField(f("default_sint64")));
        Assert.assertFalse(message.hasField(f("default_fixed32")));
        Assert.assertFalse(message.hasField(f("default_fixed64")));
        Assert.assertFalse(message.hasField(f("default_sfixed32")));
        Assert.assertFalse(message.hasField(f("default_sfixed64")));
        Assert.assertFalse(message.hasField(f("default_float")));
        Assert.assertFalse(message.hasField(f("default_double")));
        Assert.assertFalse(message.hasField(f("default_bool")));
        Assert.assertFalse(message.hasField(f("default_string")));
        Assert.assertFalse(message.hasField(f("default_bytes")));
  
        Assert.assertFalse(message.hasField(f("default_nested_enum")));
        Assert.assertFalse(message.hasField(f("default_foreign_enum")));
        Assert.assertFalse(message.hasField(f("default_import_enum")));
  
        Assert.assertFalse(message.hasField(f("default_string_piece")));
        Assert.assertFalse(message.hasField(f("default_cord")));
  
        // Fields with defaults have their default values (duh).
        Assert.assertEquals(41, message.getField(f("default_int32")));
        Assert.assertEquals(42L, message.getField(f("default_int64")));
        Assert.assertEquals(43, message.getField(f("default_uint32")));
        Assert.assertEquals(44L, message.getField(f("default_uint64")));
        Assert.assertEquals(-45, message.getField(f("default_sint32")));
        Assert.assertEquals(46L, message.getField(f("default_sint64")));
        Assert.assertEquals(47, message.getField(f("default_fixed32")));
        Assert.assertEquals(48L, message.getField(f("default_fixed64")));
        Assert.assertEquals(49, message.getField(f("default_sfixed32")));
        Assert.assertEquals(-50L, message.getField(f("default_sfixed64")));
        Assert.assertEquals(51.5F, message.getField(f("default_float")));
        Assert.assertEquals(52e3D, message.getField(f("default_double")));
        Assert.assertEquals(true, message.getField(f("default_bool")));
        Assert.assertEquals("hello", message.getField(f("default_string")));
        Assert.assertEquals(toBytes("world"), message.getField(f("default_bytes")));
  
        Assert.assertEquals(nestedBar, message.getField(f("default_nested_enum")));
        Assert.assertEquals(foreignBar, message.getField(f("default_foreign_enum")));
        Assert.assertEquals(importBar, message.getField(f("default_import_enum")));
  
        Assert.assertEquals("abc", message.getField(f("default_string_piece")));
        Assert.assertEquals("123", message.getField(f("default_cord")));
  
        Assert.assertFalse(message.hasField(f("oneof_uint32")));
        Assert.assertFalse(message.hasField(f("oneof_nested_message")));
        Assert.assertFalse(message.hasField(f("oneof_string")));
        Assert.assertFalse(message.hasField(f("oneof_bytes")));
  
        Assert.assertEquals(0, message.getField(f("oneof_uint32")));
        Assert.assertEquals("", message.getField(f("oneof_string")));
        Assert.assertEquals(toBytes(""), message.getField(f("oneof_bytes")));
      }
  
      // ---------------------------------------------------------------
  
      public void assertRepeatedFieldsModifiedViaReflection(MessageOrBuilder message) {
        // ModifyRepeatedFields only sets the second repeated element of each
        // field.  In addition to verifying this, we also verify that the first
        // element and size were *not* modified.
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_int32")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_int64")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_uint32")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_uint64")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_sint32")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_sint64")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_fixed32")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_fixed64")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_sfixed32")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_sfixed64")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_float")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_double")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_bool")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_string")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_bytes")));
  
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeatedgroup")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_nested_message")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_foreign_message")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_import_message")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_lazy_message")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_nested_enum")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_foreign_enum")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_import_enum")));
  
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_string_piece")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("repeated_cord")));
  
        Assert.assertEquals(201, message.getRepeatedField(f("repeated_int32"), 0));
        Assert.assertEquals(202L, message.getRepeatedField(f("repeated_int64"), 0));
        Assert.assertEquals(203, message.getRepeatedField(f("repeated_uint32"), 0));
        Assert.assertEquals(204L, message.getRepeatedField(f("repeated_uint64"), 0));
        Assert.assertEquals(205, message.getRepeatedField(f("repeated_sint32"), 0));
        Assert.assertEquals(206L, message.getRepeatedField(f("repeated_sint64"), 0));
        Assert.assertEquals(207, message.getRepeatedField(f("repeated_fixed32"), 0));
        Assert.assertEquals(208L, message.getRepeatedField(f("repeated_fixed64"), 0));
        Assert.assertEquals(209, message.getRepeatedField(f("repeated_sfixed32"), 0));
        Assert.assertEquals(210L, message.getRepeatedField(f("repeated_sfixed64"), 0));
        Assert.assertEquals(211F, message.getRepeatedField(f("repeated_float"), 0));
        Assert.assertEquals(212D, message.getRepeatedField(f("repeated_double"), 0));
        Assert.assertEquals(true, message.getRepeatedField(f("repeated_bool"), 0));
        Assert.assertEquals("215", message.getRepeatedField(f("repeated_string"), 0));
        Assert.assertEquals(toBytes("216"), message.getRepeatedField(f("repeated_bytes"), 0));
  
        Assert.assertEquals(
            217,
            ((Message) message.getRepeatedField(f("repeatedgroup"), 0)).getField(repeatedGroupA));
        Assert.assertEquals(
            218,
            ((Message) message.getRepeatedField(f("repeated_nested_message"), 0)).getField(nestedB));
        Assert.assertEquals(
            219,
            ((Message) message.getRepeatedField(f("repeated_foreign_message"), 0))
                .getField(foreignC));
        Assert.assertEquals(
            220,
            ((Message) message.getRepeatedField(f("repeated_import_message"), 0)).getField(importD));
        Assert.assertEquals(
            227,
            ((Message) message.getRepeatedField(f("repeated_lazy_message"), 0)).getField(nestedB));
  
        Assert.assertEquals(nestedBar, message.getRepeatedField(f("repeated_nested_enum"), 0));
        Assert.assertEquals(foreignBar, message.getRepeatedField(f("repeated_foreign_enum"), 0));
        Assert.assertEquals(importBar, message.getRepeatedField(f("repeated_import_enum"), 0));
  
        Assert.assertEquals("224", message.getRepeatedField(f("repeated_string_piece"), 0));
        Assert.assertEquals("225", message.getRepeatedField(f("repeated_cord"), 0));
  
        Assert.assertEquals(501, message.getRepeatedField(f("repeated_int32"), 1));
        Assert.assertEquals(502L, message.getRepeatedField(f("repeated_int64"), 1));
        Assert.assertEquals(503, message.getRepeatedField(f("repeated_uint32"), 1));
        Assert.assertEquals(504L, message.getRepeatedField(f("repeated_uint64"), 1));
        Assert.assertEquals(505, message.getRepeatedField(f("repeated_sint32"), 1));
        Assert.assertEquals(506L, message.getRepeatedField(f("repeated_sint64"), 1));
        Assert.assertEquals(507, message.getRepeatedField(f("repeated_fixed32"), 1));
        Assert.assertEquals(508L, message.getRepeatedField(f("repeated_fixed64"), 1));
        Assert.assertEquals(509, message.getRepeatedField(f("repeated_sfixed32"), 1));
        Assert.assertEquals(510L, message.getRepeatedField(f("repeated_sfixed64"), 1));
        Assert.assertEquals(511F, message.getRepeatedField(f("repeated_float"), 1));
        Assert.assertEquals(512D, message.getRepeatedField(f("repeated_double"), 1));
        Assert.assertEquals(true, message.getRepeatedField(f("repeated_bool"), 1));
        Assert.assertEquals("515", message.getRepeatedField(f("repeated_string"), 1));
        Assert.assertEquals(toBytes("516"), message.getRepeatedField(f("repeated_bytes"), 1));
  
        Assert.assertEquals(
            517,
            ((Message) message.getRepeatedField(f("repeatedgroup"), 1)).getField(repeatedGroupA));
        Assert.assertEquals(
            518,
            ((Message) message.getRepeatedField(f("repeated_nested_message"), 1)).getField(nestedB));
        Assert.assertEquals(
            519,
            ((Message) message.getRepeatedField(f("repeated_foreign_message"), 1))
                .getField(foreignC));
        Assert.assertEquals(
            520,
            ((Message) message.getRepeatedField(f("repeated_import_message"), 1)).getField(importD));
        Assert.assertEquals(
            527,
            ((Message) message.getRepeatedField(f("repeated_lazy_message"), 1)).getField(nestedB));
  
        Assert.assertEquals(nestedFoo, message.getRepeatedField(f("repeated_nested_enum"), 1));
        Assert.assertEquals(foreignFoo, message.getRepeatedField(f("repeated_foreign_enum"), 1));
        Assert.assertEquals(importFoo, message.getRepeatedField(f("repeated_import_enum"), 1));
  
        Assert.assertEquals("524", message.getRepeatedField(f("repeated_string_piece"), 1));
        Assert.assertEquals("525", message.getRepeatedField(f("repeated_cord"), 1));
      }
  
      public void setPackedFieldsViaReflection(Message.Builder message) {
        message.addRepeatedField(f("packed_int32"), 601);
        message.addRepeatedField(f("packed_int64"), 602L);
        message.addRepeatedField(f("packed_uint32"), 603);
        message.addRepeatedField(f("packed_uint64"), 604L);
        message.addRepeatedField(f("packed_sint32"), 605);
        message.addRepeatedField(f("packed_sint64"), 606L);
        message.addRepeatedField(f("packed_fixed32"), 607);
        message.addRepeatedField(f("packed_fixed64"), 608L);
        message.addRepeatedField(f("packed_sfixed32"), 609);
        message.addRepeatedField(f("packed_sfixed64"), 610L);
        message.addRepeatedField(f("packed_float"), 611F);
        message.addRepeatedField(f("packed_double"), 612D);
        message.addRepeatedField(f("packed_bool"), true);
        message.addRepeatedField(f("packed_enum"), foreignBar);
        // Add a second one of each field.
        message.addRepeatedField(f("packed_int32"), 701);
        message.addRepeatedField(f("packed_int64"), 702L);
        message.addRepeatedField(f("packed_uint32"), 703);
        message.addRepeatedField(f("packed_uint64"), 704L);
        message.addRepeatedField(f("packed_sint32"), 705);
        message.addRepeatedField(f("packed_sint64"), 706L);
        message.addRepeatedField(f("packed_fixed32"), 707);
        message.addRepeatedField(f("packed_fixed64"), 708L);
        message.addRepeatedField(f("packed_sfixed32"), 709);
        message.addRepeatedField(f("packed_sfixed64"), 710L);
        message.addRepeatedField(f("packed_float"), 711F);
        message.addRepeatedField(f("packed_double"), 712D);
        message.addRepeatedField(f("packed_bool"), false);
        message.addRepeatedField(f("packed_enum"), foreignBaz);
      }
  
      public void assertPackedFieldsSetViaReflection(MessageOrBuilder message) {
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("packed_int32")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("packed_int64")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("packed_uint32")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("packed_uint64")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("packed_sint32")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("packed_sint64")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("packed_fixed32")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("packed_fixed64")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("packed_sfixed32")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("packed_sfixed64")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("packed_float")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("packed_double")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("packed_bool")));
        Assert.assertEquals(2, message.getRepeatedFieldCount(f("packed_enum")));
        Assert.assertEquals(601, message.getRepeatedField(f("packed_int32"), 0));
        Assert.assertEquals(602L, message.getRepeatedField(f("packed_int64"), 0));
        Assert.assertEquals(603, message.getRepeatedField(f("packed_uint32"), 0));
        Assert.assertEquals(604L, message.getRepeatedField(f("packed_uint64"), 0));
        Assert.assertEquals(605, message.getRepeatedField(f("packed_sint32"), 0));
        Assert.assertEquals(606L, message.getRepeatedField(f("packed_sint64"), 0));
        Assert.assertEquals(607, message.getRepeatedField(f("packed_fixed32"), 0));
        Assert.assertEquals(608L, message.getRepeatedField(f("packed_fixed64"), 0));
        Assert.assertEquals(609, message.getRepeatedField(f("packed_sfixed32"), 0));
        Assert.assertEquals(610L, message.getRepeatedField(f("packed_sfixed64"), 0));
        Assert.assertEquals(611F, message.getRepeatedField(f("packed_float"), 0));
        Assert.assertEquals(612D, message.getRepeatedField(f("packed_double"), 0));
        Assert.assertEquals(true, message.getRepeatedField(f("packed_bool"), 0));
        Assert.assertEquals(foreignBar, message.getRepeatedField(f("packed_enum"), 0));
        Assert.assertEquals(701, message.getRepeatedField(f("packed_int32"), 1));
        Assert.assertEquals(702L, message.getRepeatedField(f("packed_int64"), 1));
        Assert.assertEquals(703, message.getRepeatedField(f("packed_uint32"), 1));
        Assert.assertEquals(704L, message.getRepeatedField(f("packed_uint64"), 1));
        Assert.assertEquals(705, message.getRepeatedField(f("packed_sint32"), 1));
        Assert.assertEquals(706L, message.getRepeatedField(f("packed_sint64"), 1));
        Assert.assertEquals(707, message.getRepeatedField(f("packed_fixed32"), 1));
        Assert.assertEquals(708L, message.getRepeatedField(f("packed_fixed64"), 1));
        Assert.assertEquals(709, message.getRepeatedField(f("packed_sfixed32"), 1));
        Assert.assertEquals(710L, message.getRepeatedField(f("packed_sfixed64"), 1));
        Assert.assertEquals(711F, message.getRepeatedField(f("packed_float"), 1));
        Assert.assertEquals(712D, message.getRepeatedField(f("packed_double"), 1));
        Assert.assertEquals(false, message.getRepeatedField(f("packed_bool"), 1));
        Assert.assertEquals(foreignBaz, message.getRepeatedField(f("packed_enum"), 1));
      }
  
      /**
       * Verifies that the reflection setters for the given.Builder object throw a
       * NullPointerException if they are passed a null value. Uses Assert to throw an appropriate
       * assertion failure, if the condition is not verified.
       */
      public void assertReflectionSettersRejectNull(Message.Builder builder) throws Exception {
        try {
          builder.setField(f("optional_string"), null);
          Assert.fail("Exception was not thrown");
        } catch (NullPointerException e) {
          // We expect this exception.
        }
        try {
          builder.setField(f("optional_bytes"), null);
          Assert.fail("Exception was not thrown");
        } catch (NullPointerException e) {
          // We expect this exception.
        }
        try {
          builder.setField(f("optional_nested_enum"), null);
          Assert.fail("Exception was not thrown");
        } catch (NullPointerException e) {
          // We expect this exception.
        }
        try {
          builder.setField(f("optional_nested_message"), (TestAllTypes.NestedMessage) null);
          Assert.fail("Exception was not thrown");
        } catch (NullPointerException e) {
          // We expect this exception.
        }
        try {
          builder.setField(f("optional_nested_message"), (TestAllTypes.NestedMessage.Builder) null);
          Assert.fail("Exception was not thrown");
        } catch (NullPointerException e) {
          // We expect this exception.
        }
  
        try {
          builder.addRepeatedField(f("repeated_string"), null);
          Assert.fail("Exception was not thrown");
        } catch (NullPointerException e) {
          // We expect this exception.
        }
        try {
          builder.addRepeatedField(f("repeated_bytes"), null);
          Assert.fail("Exception was not thrown");
        } catch (NullPointerException e) {
          // We expect this exception.
        }
        try {
          builder.addRepeatedField(f("repeated_nested_enum"), null);
          Assert.fail("Exception was not thrown");
        } catch (NullPointerException e) {
          // We expect this exception.
        }
        try {
          builder.addRepeatedField(f("repeated_nested_message"), null);
          Assert.fail("Exception was not thrown");
        } catch (NullPointerException e) {
          // We expect this exception.
        }
      }
  
      /**
       * Verifies that the reflection repeated setters for the given Builder object throw a
       * NullPointerException if they are passed a null value. Uses Assert to throw an appropriate
       * assertion failure, if the condition is not verified.
       */
      public void assertReflectionRepeatedSettersRejectNull(Message.Builder builder)
          throws Exception {
        builder.addRepeatedField(f("repeated_string"), "one");
        try {
          builder.setRepeatedField(f("repeated_string"), 0, null);
          Assert.fail("Exception was not thrown");
        } catch (NullPointerException e) {
          // We expect this exception.
        }
  
        builder.addRepeatedField(f("repeated_bytes"), toBytes("one"));
        try {
          builder.setRepeatedField(f("repeated_bytes"), 0, null);
          Assert.fail("Exception was not thrown");
        } catch (NullPointerException e) {
          // We expect this exception.
        }
  
        builder.addRepeatedField(f("repeated_nested_enum"), nestedBaz);
        try {
          builder.setRepeatedField(f("repeated_nested_enum"), 0, null);
          Assert.fail("Exception was not thrown");
        } catch (NullPointerException e) {
          // We expect this exception.
        }
  
        builder.addRepeatedField(
            f("repeated_nested_message"), TestAllTypes.NestedMessage.newBuilder().setBb(218).build());
        try {
          builder.setRepeatedField(f("repeated_nested_message"), 0, null);
          Assert.fail("Exception was not thrown");
        } catch (NullPointerException e) {
          // We expect this exception.
        }
      }
    }
  
    /** @param filePath The path relative to {@link #getTestDataDir}. */
    public static String readTextFromFile(String filePath) {
      return readBytesFromFile(filePath).toStringUtf8();
    }
  
    private static File getTestDataDir() {
      // Search each parent directory looking for "src/google/protobuf".
      File ancestor = new File(System.getProperty("protobuf.dir", "."));
      String initialPath = ancestor.getAbsolutePath();
      try {
        ancestor = ancestor.getCanonicalFile();
      } catch (IOException e) {
        throw new RuntimeException("Couldn't get canonical name of working directory.", e);
      }
      while (ancestor != null && ancestor.exists()) {
        if (new File(ancestor, "src/google/protobuf").exists()) {
          return new File(ancestor, "src/google/protobuf/testdata");
        }
        ancestor = ancestor.getParentFile();
      }
  
      throw new RuntimeException(
          "Could not find golden files.  This test must be run from within the "
              + "protobuf source package so that it can read test data files from the "
              + "C++ source tree: "
              + initialPath);
    }
  
    /** @param filename The path relative to {@link #getTestDataDir}. */
    public static ByteString readBytesFromFile(String filename) {
      File fullPath = new File(getTestDataDir(), filename);
      try {
        RandomAccessFile file = new RandomAccessFile(fullPath, "r");
        byte[] content = new byte[(int) file.length()];
        file.readFully(content);
        return ByteString.copyFrom(content);
      } catch (IOException e) {
        // Throw a RuntimeException here so that we can call this function from
        // static initializers.
        throw new IllegalArgumentException("Couldn't read file: " + fullPath.getPath(), e);
      }
    }
    // END FULL-RUNTIME
  
    private static ByteString readBytesFromResource(String name) {
      try {
        return ByteString.copyFrom(
            com.google.common.io.ByteStreams.toByteArray(TestUtil.class.getResourceAsStream(name)));
      } catch (IOException e) {
        throw new RuntimeException(e);
      }
    }
  
    /**
     * Get the bytes of the "golden message". This is a serialized TestAllTypes with all fields set as
     * they would be by {@link #setAllFields(TestAllTypes.Builder)}, but it is loaded from a file on
     * disk rather than generated dynamically. The file is actually generated by C++ code, so testing
     * against it verifies compatibility with C++.
     */
    public static ByteString getGoldenMessage() {
      if (goldenMessage == null) {
        goldenMessage =
            readBytesFromResource("/google/protobuf/testdata/golden_message_oneof_implemented");
      }
      return goldenMessage;
    }
  
    private static ByteString goldenMessage = null;
  
    /**
     * Get the bytes of the "golden packed fields message". This is a serialized TestPackedTypes with
     * all fields set as they would be by {@link #setPackedFields(TestPackedTypes.Builder)}, but it is
     * loaded from a file on disk rather than generated dynamically. The file is actually generated by
     * C++ code, so testing against it verifies compatibility with C++.
     */
    public static ByteString getGoldenPackedFieldsMessage() {
      if (goldenPackedFieldsMessage == null) {
        goldenPackedFieldsMessage =
            readBytesFromResource("/google/protobuf/testdata/golden_packed_fields_message");
      }
      return goldenPackedFieldsMessage;
    }
  
    private static ByteString goldenPackedFieldsMessage = null;
  
    // BEGIN FULL-RUNTIME
    /**
     * Mock implementation of {@link GeneratedMessage.BuilderParent} for testing.
     *
     * @author jonp@google.com (Jon Perlow)
     */
    public static class MockBuilderParent implements GeneratedMessage.BuilderParent {
  
      private int invalidations;
  
      @Override
      public void markDirty() {
        invalidations++;
      }
  
      public int getInvalidationCount() {
        return invalidations;
      }
    }
    // END FULL-RUNTIME
  
    /** Helper class to test logged messages */
    public static class TestLogHandler extends Handler {
      /** We will keep a private list of all logged records */
      private final List<LogRecord> list = new ArrayList<>();
  
      /** Adds the most recently logged record to our list. */
      @Override
      public synchronized void publish(LogRecord record) {
        list.add(record);
      }
  
      @Override
      public void flush() {}
  
      @Override
      public void close() {}
  
      /** Returns a snapshot of the logged records. */
      public synchronized List<LogRecord> getStoredLogRecords() {
        List<LogRecord> result = new ArrayList<>(list);
        return Collections.unmodifiableList(result);
      }
    }
  }
  