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 (type tree with interface).
25  */
26 public class Clash3 {
main(String[] args)27     public static void main(String[] args) {
28         InvocationHandler handler = new Clash3InvocationHandler();
29 
30         try {
31             Proxy.newProxyInstance(Clash.class.getClassLoader(),
32                 new Class[] {
33                     Interface3a.class,
34                     Interface3base.class,
35                     Interface3aa.class,
36                     Interface3b.class },
37                 handler);
38             System.err.println("Clash3 did not throw expected exception");
39         } catch (IllegalArgumentException iae) {
40             System.out.println("Clash3 threw expected exception");
41         }
42     }
43 }
44 
x()45 class R3base implements I3 { int mBlah; public void x() {} }
46 class R3a extends R3base { int mBlah_a;  }
47 class R3aa extends R3a { int mBlah_aa;  }
x()48 class R3b implements I3 { int mBlah_b; public void x() {} }
49 
50 interface I3 {
x()51     void x();
52 }
53 
54 interface Interface3base {
thisIsTrouble()55     public R3base thisIsTrouble();
56 }
57 
58 interface Interface3a {
thisIsTrouble()59     public R3a thisIsTrouble();
60 }
61 interface Interface3aa {
thisIsTrouble()62     public R3aa thisIsTrouble();
63 }
64 interface Interface3b {
thisIsTrouble()65     public R3b thisIsTrouble();
66 }
67 
68 class Clash3InvocationHandler implements InvocationHandler {
69     /* don't really need to do anything -- should never get this far */
invoke(Object proxy, Method method, Object[] args)70     public Object invoke(Object proxy, Method method, Object[] args)
71         throws Throwable {
72 
73         return null;
74     }
75 }
76