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.
   */
  
  import java.lang.reflect.*;
  import java.util.Base64;
  
  import art.Redefinition;
  
  class Main {
    public static String TEST_NAME = "935-non-retransformable";
  
    /**
     * base64 encoded class/dex file for
     * class Transform {
     *   public void sayHi() {
     *     System.out.println("Hello");
     *   }
     *   public void sayGoodbye() {
     *    System.out.println("Goodbye");
     *   }
     * }
     */
    private static final byte[] CLASS_BYTES = Base64.getDecoder().decode(
      "yv66vgAAADQAHwoABwAQCQARABIIABMKABQAFQgAFgcAFwcAGAEABjxpbml0PgEAAygpVgEABENv" +
      "ZGUBAA9MaW5lTnVtYmVyVGFibGUBAAVzYXlIaQEACnNheUdvb2RieWUBAApTb3VyY2VGaWxlAQAO" +
      "VHJhbnNmb3JtLmphdmEMAAgACQcAGQwAGgAbAQAFSGVsbG8HABwMAB0AHgEAB0dvb2RieWUBAAlU" +
      "cmFuc2Zvcm0BABBqYXZhL2xhbmcvT2JqZWN0AQAQamF2YS9sYW5nL1N5c3RlbQEAA291dAEAFUxq" +
      "YXZhL2lvL1ByaW50U3RyZWFtOwEAE2phdmEvaW8vUHJpbnRTdHJlYW0BAAdwcmludGxuAQAVKExq" +
      "YXZhL2xhbmcvU3RyaW5nOylWACAABgAHAAAAAAADAAAACAAJAAEACgAAAB0AAQABAAAABSq3AAGx" +
      "AAAAAQALAAAABgABAAAAAQABAAwACQABAAoAAAAlAAIAAQAAAAmyAAISA7YABLEAAAABAAsAAAAK" +
      "AAIAAAADAAgABAABAA0ACQABAAoAAAAlAAIAAQAAAAmyAAISBbYABLEAAAABAAsAAAAKAAIAAAAG" +
      "AAgABwABAA4AAAACAA8=");
    private static final byte[] DEX_BYTES = Base64.getDecoder().decode(
      "ZGV4CjAzNQDpaN+7jX/ZLl9Jr0HAEV7nqL1YDuakKakgAwAAcAAAAHhWNBIAAAAAAAAAAIACAAAQ" +
      "AAAAcAAAAAYAAACwAAAAAgAAAMgAAAABAAAA4AAAAAUAAADoAAAAAQAAABABAADwAQAAMAEAAJYB" +
      "AACeAQAApwEAAK4BAAC7AQAA0gEAAOYBAAD6AQAADgIAAB4CAAAhAgAAJQIAADkCAAA+AgAARwIA" +
      "AFMCAAADAAAABAAAAAUAAAAGAAAABwAAAAkAAAAJAAAABQAAAAAAAAAKAAAABQAAAJABAAAEAAEA" +
      "DAAAAAAAAAAAAAAAAAAAAA4AAAAAAAAADwAAAAEAAQANAAAAAgAAAAAAAAAAAAAAAAAAAAIAAAAA" +
      "AAAACAAAAAAAAABrAgAAAAAAAAEAAQABAAAAWgIAAAQAAABwEAQAAAAOAAMAAQACAAAAXwIAAAkA" +
      "AABiAAAAGwEBAAAAbiADABAADgAAAAMAAQACAAAAZQIAAAkAAABiAAAAGwECAAAAbiADABAADgAA" +
      "AAEAAAADAAY8aW5pdD4AB0dvb2RieWUABUhlbGxvAAtMVHJhbnNmb3JtOwAVTGphdmEvaW8vUHJp" +
      "bnRTdHJlYW07ABJMamF2YS9sYW5nL09iamVjdDsAEkxqYXZhL2xhbmcvU3RyaW5nOwASTGphdmEv" +
      "bGFuZy9TeXN0ZW07AA5UcmFuc2Zvcm0uamF2YQABVgACVkwAEmVtaXR0ZXI6IGphY2stNC4yMgAD" +
      "b3V0AAdwcmludGxuAApzYXlHb29kYnllAAVzYXlIaQABAAcOAAYABw6HAAMABw6HAAAAAQIAgIAE" +
      "sAIBAcgCAQHsAgAAAA0AAAAAAAAAAQAAAAAAAAABAAAAEAAAAHAAAAACAAAABgAAALAAAAADAAAA" +
      "AgAAAMgAAAAEAAAAAQAAAOAAAAAFAAAABQAAAOgAAAAGAAAAAQAAABABAAABIAAAAwAAADABAAAB" +
      "EAAAAQAAAJABAAACIAAAEAAAAJYBAAADIAAAAwAAAFoCAAAAIAAAAQAAAGsCAAAAEAAAAQAAAIAC" +
      "AAA=");
  
  
    public static ClassLoader getClassLoaderFor(String location) throws Exception {
      try {
        Class<?> class_loader_class = Class.forName("dalvik.system.PathClassLoader");
        Constructor<?> ctor = class_loader_class.getConstructor(String.class, ClassLoader.class);
        /* on Dalvik, this is a DexFile; otherwise, it's null */
        return (ClassLoader)ctor.newInstance(location + "/" + TEST_NAME + "-ex.jar",
                                             Main.class.getClassLoader());
      } catch (ClassNotFoundException e) {
        // Running on RI. Use URLClassLoader.
        return new java.net.URLClassLoader(
            new java.net.URL[] { new java.net.URL("file://" + location + "/classes-ex/") });
      }
    }
  
    public static void main(String[] args) {
      Redefinition.setPopRetransformations(false);
      Redefinition.addCommonTransformationResult("Transform", CLASS_BYTES, DEX_BYTES);
      Redefinition.enableCommonRetransformation(true);
      try {
        /* this is the "alternate" DEX/Jar file */
        ClassLoader new_loader = getClassLoaderFor(System.getenv("DEX_LOCATION"));
        Class<?> klass = (Class<?>)new_loader.loadClass("TestMain");
        if (klass == null) {
          throw new AssertionError("loadClass failed");
        }
        Method run_test = klass.getMethod("runTest");
        run_test.invoke(null);
  
        // Remove the original transformation. It has been used by now.
        Redefinition.popTransformationFor("Transform");
        // Make sure we don't get called for transformation again.
        Redefinition.addCommonTransformationResult("Transform", new byte[0], new byte[0]);
        Redefinition.doCommonClassRetransformation(new_loader.loadClass("Transform"));
        run_test.invoke(null);
      } catch (Exception e) {
        System.out.println(e.toString());
        e.printStackTrace();
      }
    }
  }
  