1 /* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 import java.lang.reflect.InvocationHandler; 18 import java.lang.reflect.InvocationTargetException; 19 import java.lang.reflect.Method; 20 import java.lang.reflect.Proxy; 21 22 /* 23 * Try to instantiate a proxy class with interfaces that have conflicting 24 * duplicate methods (tree of types). 25 */ 26 public class Clash4 { 27 public static void main(String[] args) { 28 InvocationHandler handler = new Clash4InvocationHandler(); 29 30 try { 31 Proxy.newProxyInstance(Clash.class.getClassLoader(), 32 new Class<?>[] { 33 Interface4a.class, 34 Interface4aa.class, 35 Interface4base.class, 36 Interface4b.class, 37 Interface4bb.class }, 38 handler); 39 System.out.println("Clash4 did not throw expected exception"); 40 } catch (IllegalArgumentException iae) { 41 System.out.println("Clash4 threw expected exception"); 42 //System.out.println(iae); 43 } 44 } 45 } 46 47 class R4base { int mBlah; } 48 class R4a extends R4base { int mBlah_a; } 49 class R4aa extends R4a { int mBlah_aa; } 50 class R4b extends R4base { int mBlah_b; } 51 class R4bb extends R4b { int mBlah_bb; } 52 53 interface Interface4base { 54 public R4base thisIsTrouble(); 55 } 56 57 interface Interface4a { 58 public R4a thisIsTrouble(); 59 } 60 interface Interface4aa { 61 public R4aa thisIsTrouble(); 62 } 63 interface Interface4b { 64 public R4b thisIsTrouble(); 65 } 66 interface Interface4bb { 67 public R4bb thisIsTrouble(); 68 } 69 70 class Clash4InvocationHandler implements InvocationHandler { 71 /* don't really need to do anything -- should never get this far */ 72 public Object invoke(Object proxy, Method method, Object[] args) 73 throws Throwable { 74 75 return null; 76 } 77 } 78
