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.Method;
  import java.lang.reflect.InvocationTargetException;
  
  import dalvik.system.PathClassLoader;
  
  // ClassLoader not delegating for non java. packages.
  class DelegateLastPathClassLoader extends PathClassLoader {
  
    public DelegateLastPathClassLoader(String dexPath, ClassLoader parent) {
      super(dexPath, parent);
    }
  
    @Override
    protected Class<?> loadClass(String name, boolean resolve) throws ClassNotFoundException {
      if (!name.startsWith("java.")) {
        try {
          return findClass(name);
        } catch (ClassNotFoundException ignore) {
          // Ignore and fall through to parent class loader.
        }
      }
      return super.loadClass(name, resolve);
    }
  }
  
  public class Main {
  
    public static void main(String[] args) throws Exception {
      System.loadLibrary(args[0]);
      final String DEX_FILE = System.getenv("DEX_LOCATION") + "/613-inlining-dex-cache-ex.jar";
      ClassLoader loader = new DelegateLastPathClassLoader(DEX_FILE, Main.class.getClassLoader());
      Class cls = loader.loadClass("LoadedByAppClassLoader");
      Method m = cls.getDeclaredMethod("letMeInlineYou");
      // Invoke the method enough times to get JITted.
      for (int i = 0; i < 10000; ++i) {
        m.invoke(null);
      }
      ensureJitCompiled(cls, "letMeInlineYou");
      ClassLoader bLoader = areYouB();
      if (bLoader != Main.class.getClassLoader()) {
        throw new Error("Wrong class loader");
      }
    }
  
    public static void foo(Main o) {
      // LoadedByAppClassLoader.letMeInlineYou will try to inline this
      // method but used to pass the wrong class loader. As a result,
      // the lookup of B.foo was updating the dex cache with the other
      // class loader's B class.
      if (o != null) {
        o.myField.foo();
      }
    }
  
    public B myField;
  
    public static ClassLoader areYouB() {
      return OtherClass.getB().getClassLoader();
    }
  
    public static native void ensureJitCompiled(Class cls, String method_name);
  }
  
  class OtherClass {
    public static Class getB() {
      // This used to return the B class of another class loader.
      return B.class;
    }
  }
  