content: /*
   * Copyright (C) 2017 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  import java.lang.reflect.Method;
  import java.util.OptionalLong;
  public class TestMain {
    public static void runTest() {
      // This should be our redefined OptionalLong.
      OptionalLong ol = OptionalLong.of(123);
      try {
        // OptionalLong is a class that is unlikely to be used by the time this test starts.
        Method foo = OptionalLong.class.getMethod("foo");
        System.out.println("ol.foo() -> '" + (String)foo.invoke(ol) + "'");
        System.out.println("ol.toString() -> '" + ol.toString() + "'");
      } catch (Exception e) {
        System.out.println(
            "Exception occured (did something load OptionalLong before this test method!: "
            + e.toString());
        e.printStackTrace();
      }
    }
  }
  