content: /*
   * Copyright (C) 2008 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.InvocationHandler;
  import java.lang.reflect.InvocationTargetException;
  import java.lang.reflect.Method;
  import java.lang.reflect.Proxy;
  
  /*
   * Try to instantiate a proxy class with interfaces that have conflicting
   * duplicate methods (primitive vs. object).
   */
  public class Clash {
      public static void main(String[] args) {
          InvocationHandler handler = new ClashInvocationHandler();
  
          /* try passing in the same interface twice */
          try {
              Proxy.newProxyInstance(Clash.class.getClassLoader(),
                  new Class[] { Interface1A.class, Interface1A.class },
                  handler);
              System.err.println("Dupe did not throw expected exception");
          } catch (IllegalArgumentException iae) {
              System.out.println("Dupe threw expected exception");
          }
  
          try {
              Proxy.newProxyInstance(Clash.class.getClassLoader(),
                  new Class[] { Interface1A.class, Interface1B.class },
                  handler);
              System.err.println("Clash did not throw expected exception");
          } catch (IllegalArgumentException iae) {
              System.out.println("Clash threw expected exception");
          }
      }
  }
  
  interface Interface1A {
      public int thisIsOkay();
  
      public float thisIsTrouble();
  }
  
  interface Interface1B {
      public int thisIsOkay();
  
      public Object thisIsTrouble();
  }
  
  class ClashInvocationHandler implements InvocationHandler {
      /* don't really need to do anything -- should never get this far */
      public Object invoke(Object proxy, Method method, Object[] args)
          throws Throwable {
  
          return null;
      }
  }
  