1 /*
2  * Copyright (C) 2015 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.annotation.Annotation;
18 import java.lang.reflect.InvocationHandler;
19 import java.lang.reflect.InvocationTargetException;
20 import java.lang.reflect.Constructor;
21 import java.lang.reflect.Field;
22 import java.lang.reflect.Method;
23 import java.lang.reflect.Proxy;
24 import java.util.Arrays;
25 import java.util.Comparator;
26 
27 /**
28  * Test invoking a proxy method from native code.
29  */
30 
31 interface NativeInterface {
callback()32     public void callback();
33 }
34 
35 public class NativeProxy {
36 
main(String[] args)37     public static void main(String[] args) {
38         System.loadLibrary(args[0]);
39 
40         try {
41             NativeInterface inf = (NativeInterface)Proxy.newProxyInstance(
42                     NativeProxy.class.getClassLoader(),
43                     new Class<?>[] { NativeInterface.class },
44                     new NativeInvocationHandler());
45 
46             nativeCall(inf);
47         } catch (Exception exc) {
48             throw new RuntimeException(exc);
49         }
50     }
51 
52     public static class NativeInvocationHandler implements InvocationHandler {
invoke(final Object proxy, final Method method, final Object[] args)53         public Object invoke(final Object proxy,
54                              final Method method,
55                              final Object[] args) throws Throwable {
56             System.out.println(method.getName());
57             return null;
58         }
59     }
60 
nativeCall(NativeInterface inf)61     public static native void nativeCall(NativeInterface inf);
62 }
63