blob: 7dabe927b0283565f0756aa7ff6cc4caa0d13f23 [file] [log] [blame]
/*
* 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.out.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.out.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;
}
}