| /* |
| * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* @test |
| * @bug 4227192 4487672 |
| * @summary This is a basic functional test of the dynamic proxy API (part 1). |
| * @author Peter Jones |
| * |
| * @build Basic1 |
| * @run main Basic1 |
| */ |
| |
| import java.lang.reflect.*; |
| import java.security.*; |
| import java.util.*; |
| |
| public class Basic1 { |
| |
| public static void main(String[] args) { |
| |
| System.err.println( |
| "\nBasic functional test of dynamic proxy API, part 1\n"); |
| |
| try { |
| Class<?>[] interfaces = |
| new Class<?>[] { Runnable.class, Observer.class }; |
| |
| ClassLoader loader = ClassLoader.getSystemClassLoader(); |
| |
| /* |
| * Generate a proxy class. |
| */ |
| Class<?> proxyClass = Proxy.getProxyClass(loader, interfaces); |
| System.err.println("+ generated proxy class: " + proxyClass); |
| |
| /* |
| * Verify that it is public, final, and not abstract. |
| */ |
| int flags = proxyClass.getModifiers(); |
| System.err.println( |
| "+ proxy class's modifiers: " + Modifier.toString(flags)); |
| if (!Modifier.isPublic(flags)) { |
| throw new RuntimeException("proxy class in not public"); |
| } |
| if (!Modifier.isFinal(flags)) { |
| throw new RuntimeException("proxy class in not final"); |
| } |
| if (Modifier.isAbstract(flags)) { |
| throw new RuntimeException("proxy class in abstract"); |
| } |
| |
| /* |
| * Verify that it is assignable to the proxy interfaces. |
| */ |
| for (Class<?> intf : interfaces) { |
| if (!intf.isAssignableFrom(proxyClass)) { |
| throw new RuntimeException( |
| "proxy class not assignable to proxy interface " + |
| intf.getName()); |
| } |
| } |
| |
| /* |
| * Verify that it has the given permutation of interfaces. |
| */ |
| List<Class<?>> l1 = Arrays.asList(interfaces); |
| List<Class<?>> l2 = Arrays.asList(proxyClass.getInterfaces()); |
| System.err.println("+ proxy class's interfaces: " + l2); |
| if (!l1.equals(l2)) { |
| throw new RuntimeException( |
| "proxy class interfaces are " + l2 + |
| " (expected " + l1 + ")"); |
| } |
| |
| /* |
| * Verify that system agress that it is a proxy class. |
| */ |
| if (Proxy.isProxyClass(Object.class)) { |
| throw new RuntimeException( |
| "Proxy.isProxyClass returned true for java.lang.Object"); |
| } |
| if (!Proxy.isProxyClass(proxyClass)) { |
| throw new RuntimeException( |
| "Proxy.isProxyClass returned false for proxy class"); |
| } |
| |
| /* |
| * Verify that its protection domain is the bootstrap domain. |
| */ |
| ProtectionDomain pd = proxyClass.getProtectionDomain(); |
| System.err.println("+ proxy class's protection domain: " + pd); |
| if (!pd.implies(new AllPermission())) { |
| throw new RuntimeException( |
| "proxy class does not have AllPermission"); |
| } |
| |
| /* |
| * Verify that it has a constructor that takes an |
| * InvocationHandler instance. |
| */ |
| Constructor<?> cons = proxyClass.getConstructor(InvocationHandler.class); |
| |
| /* |
| * Test constructor with null InvocationHandler |
| */ |
| try { |
| cons.newInstance(new Object[] { null }); |
| throw new RuntimeException("Expected NullPointerException thrown"); |
| } catch (InvocationTargetException e) { |
| Throwable t = e.getTargetException(); |
| if (!(t instanceof NullPointerException)) { |
| throw t; |
| } |
| } |
| |
| /* |
| * Construct a proxy instance. |
| */ |
| Handler handler = new Handler(); |
| Object proxy = cons.newInstance(handler); |
| handler.currentProxy = proxy; |
| |
| /* |
| * Invoke a method on a proxy instance. |
| */ |
| Method m = Runnable.class.getMethod("run"); |
| ((Runnable) proxy).run(); |
| if (!handler.lastMethod.equals(m)) { |
| throw new RuntimeException( |
| "proxy method invocation failure (lastMethod = " + |
| handler.lastMethod + ")"); |
| } |
| |
| System.err.println("\nTEST PASSED"); |
| |
| } catch (Throwable e) { |
| System.err.println("\nTEST FAILED:"); |
| e.printStackTrace(); |
| throw new RuntimeException("TEST FAILED: " + e.toString()); |
| } |
| } |
| |
| public static class Handler implements InvocationHandler { |
| |
| Object currentProxy; |
| Method lastMethod; |
| |
| public Object invoke(Object proxy, Method method, Object[] args) |
| throws Throwable |
| { |
| if (proxy != currentProxy) { |
| throw new RuntimeException( |
| "wrong proxy instance passed to invoke method"); |
| } |
| lastMethod = method; |
| return null; |
| } |
| } |
| } |