content: /*
   * Copyright (C) 2016 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.
   */
  
  package art;
  
  import java.lang.reflect.Method;
  import java.util.Base64;
  
  public class Test984 {
  
    static class Transform {
      // This method must be 'static' so that when we try to invoke it through a j.l.r.Method we will
      // simply use the jmethodID directly and not do any lookup in any receiver object.
      public static void sayHi(Runnable r) {
        System.out.println("hello");
        r.run();
        System.out.println("goodbye");
      }
    }
    // static class Transform {
    //   public static void sayHi(Runnable r) {
    //     System.out.println("Hello - Transformed");
    //     r.run();
    //     System.out.println("Goodbye - Transformed");
    //   }
    // }
    private static final byte[] CLASS_BYTES = Base64.getDecoder().decode(
      "yv66vgAAADQAKAoACAARCQASABMIABQKABUAFgsAFwAYCAAZBwAbBwAeAQAGPGluaXQ+AQADKClW" +
      "AQAEQ29kZQEAD0xpbmVOdW1iZXJUYWJsZQEABXNheUhpAQAXKExqYXZhL2xhbmcvUnVubmFibGU7" +
      "KVYBAApTb3VyY2VGaWxlAQAMVGVzdDk4NC5qYXZhDAAJAAoHAB8MACAAIQEAE0hlbGxvIC0gVHJh" +
      "bnNmb3JtZWQHACIMACMAJAcAJQwAJgAKAQAVR29vZGJ5ZSAtIFRyYW5zZm9ybWVkBwAnAQAVYXJ0" +
      "L1Rlc3Q5ODQkVHJhbnNmb3JtAQAJVHJhbnNmb3JtAQAMSW5uZXJDbGFzc2VzAQAQamF2YS9sYW5n" +
      "L09iamVjdAEAEGphdmEvbGFuZy9TeXN0ZW0BAANvdXQBABVMamF2YS9pby9QcmludFN0cmVhbTsB" +
      "ABNqYXZhL2lvL1ByaW50U3RyZWFtAQAHcHJpbnRsbgEAFShMamF2YS9sYW5nL1N0cmluZzspVgEA" +
      "EmphdmEvbGFuZy9SdW5uYWJsZQEAA3J1bgEAC2FydC9UZXN0OTg0ACAABwAIAAAAAAACAAAACQAK" +
      "AAEACwAAAB0AAQABAAAABSq3AAGxAAAAAQAMAAAABgABAAAABQAJAA0ADgABAAsAAAA7AAIAAQAA" +
      "ABeyAAISA7YABCq5AAUBALIAAhIGtgAEsQAAAAEADAAAABIABAAAAAcACAAIAA4ACQAWAAoAAgAP" +
      "AAAAAgAQAB0AAAAKAAEABwAaABwACA==");
    private static final byte[] DEX_BYTES = Base64.getDecoder().decode(
      "ZGV4CjAzNQB/mxSMAAAAAAAAAAAAAAAAAAAAAAAAAAA8BAAAcAAAAHhWNBIAAAAAAAAAAHgDAAAX" +
      "AAAAcAAAAAoAAADMAAAAAwAAAPQAAAABAAAAGAEAAAUAAAAgAQAAAQAAAEgBAADUAgAAaAEAAGgB" +
      "AABwAQAAhwEAAJwBAAC1AQAAxAEAAOgBAAAIAgAAHwIAADMCAABJAgAAXQIAAHECAAB/AgAAigIA" +
      "AI0CAACRAgAAngIAAKQCAACpAgAAsgIAALcCAAC+AgAAAwAAAAQAAAAFAAAABgAAAAcAAAAIAAAA" +
      "CQAAAAoAAAALAAAADgAAAA4AAAAJAAAAAAAAAA8AAAAJAAAAyAIAAA8AAAAJAAAA0AIAAAgABAAS" +
      "AAAAAAAAAAAAAAAAAAEAFQAAAAQAAgATAAAABQAAAAAAAAAGAAAAFAAAAAAAAAAAAAAABQAAAAAA" +
      "AAAMAAAAaAMAADwDAAAAAAAABjxpbml0PgAVR29vZGJ5ZSAtIFRyYW5zZm9ybWVkABNIZWxsbyAt" +
      "IFRyYW5zZm9ybWVkABdMYXJ0L1Rlc3Q5ODQkVHJhbnNmb3JtOwANTGFydC9UZXN0OTg0OwAiTGRh" +
      "bHZpay9hbm5vdGF0aW9uL0VuY2xvc2luZ0NsYXNzOwAeTGRhbHZpay9hbm5vdGF0aW9uL0lubmVy" +
      "Q2xhc3M7ABVMamF2YS9pby9QcmludFN0cmVhbTsAEkxqYXZhL2xhbmcvT2JqZWN0OwAUTGphdmEv" +
      "bGFuZy9SdW5uYWJsZTsAEkxqYXZhL2xhbmcvU3RyaW5nOwASTGphdmEvbGFuZy9TeXN0ZW07AAxU" +
      "ZXN0OTg0LmphdmEACVRyYW5zZm9ybQABVgACVkwAC2FjY2Vzc0ZsYWdzAARuYW1lAANvdXQAB3By" +
      "aW50bG4AA3J1bgAFc2F5SGkABXZhbHVlAAAAAAEAAAAGAAAAAQAAAAcAAAAFAAcOAAcBAAcOAQgP" +
      "AQMPAQgPAAEAAQABAAAA2AIAAAQAAABwEAMAAAAOAAMAAQACAAAA3QIAABQAAABiAAAAGwECAAAA" +
      "biACABAAchAEAAIAYgAAABsBAQAAAG4gAgAQAA4AAAACAACAgATsBQEJhAYAAAICARYYAQIDAhAE" +
      "CBEXDQACAAAATAMAAFIDAABcAwAAAAAAAAAAAAAAAAAAEAAAAAAAAAABAAAAAAAAAAEAAAAXAAAA" +
      "cAAAAAIAAAAKAAAAzAAAAAMAAAADAAAA9AAAAAQAAAABAAAAGAEAAAUAAAAFAAAAIAEAAAYAAAAB" +
      "AAAASAEAAAIgAAAXAAAAaAEAAAEQAAACAAAAyAIAAAMgAAACAAAA2AIAAAEgAAACAAAA7AIAAAAg" +
      "AAABAAAAPAMAAAQgAAACAAAATAMAAAMQAAABAAAAXAMAAAYgAAABAAAAaAMAAAAQAAABAAAAeAMA" +
      "AA==");
  
    public static void run() {
      doTest();
    }
  
    // The Method that holds an obsolete method pointer. We will fill it in by getting a jmethodID
    // from a stack with an obsolete method in it. There should be no other ways to obtain an obsolete
    // jmethodID in ART without unsafe casts.
    public static Method obsolete_method = null;
  
    public static void doTest() {
      // Capture the obsolete method.
      //
      // NB The obsolete method must be direct so that we will not look in the receiver type to get
      // the actual method.
      Transform.sayHi(() -> {
        System.out.println("transforming calling function");
        Redefinition.doCommonClassRedefinition(Transform.class, CLASS_BYTES, DEX_BYTES);
        System.out.println("Retrieving obsolete method from current stack");
        // This should get the obsolete sayHi method (as the only obsolete method on the current
        // threads stack).
        Test984.obsolete_method = getFirstObsoleteMethod984();
      });
  
      // Prove we did actually redefine something.
      System.out.println("Invoking redefined version of method.");
      Transform.sayHi(() -> { System.out.println("Not doing anything here"); });
  
      System.out.println("invoking obsolete method");
      try {
        obsolete_method.invoke(null, (Runnable)() -> {
          throw new Error("Unexpected code running from invoke of obsolete method!");
        });
        throw new Error("Running obsolete method did not throw exception");
      } catch (Throwable e) {
        if (e instanceof InternalError || e.getCause() instanceof InternalError) {
          System.out.println("Caught expected error from attempting to invoke an obsolete method.");
        } else {
          System.out.println("Unexpected error type for calling obsolete method! Expected either "
              + "an InternalError or something that is caused by an InternalError.");
          throw new Error("Unexpected error caught: ", e);
        }
      }
    }
  
    // Gets the first obsolete method on the current threads stack (NB only looks through the first 30
    // stack frames).
    private static native Method getFirstObsoleteMethod984();
  }
  