1/* 2 * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24/* @test 25 * @bug 4227192 4487672 26 * @summary This is a basic functional test of the dynamic proxy API (part 1). 27 * @author Peter Jones 28 * 29 * @build Basic1 30 * @run main Basic1 31 */ 32 33import java.lang.reflect.*; 34import java.security.*; 35import java.util.*; 36 37public class Basic1 { 38 39 public static void main(String[] args) { 40 41 System.err.println( 42 "\nBasic functional test of dynamic proxy API, part 1\n"); 43 44 try { 45 Class<?>[] interfaces = 46 new Class<?>[] { Runnable.class, Observer.class }; 47 48 ClassLoader loader = ClassLoader.getSystemClassLoader(); 49 50 /* 51 * Generate a proxy class. 52 */ 53 Class<?> proxyClass = Proxy.getProxyClass(loader, interfaces); 54 System.err.println("+ generated proxy class: " + proxyClass); 55 56 /* 57 * Verify that it is public, final, and not abstract. 58 */ 59 int flags = proxyClass.getModifiers(); 60 System.err.println( 61 "+ proxy class's modifiers: " + Modifier.toString(flags)); 62 if (!Modifier.isPublic(flags)) { 63 throw new RuntimeException("proxy class in not public"); 64 } 65 if (!Modifier.isFinal(flags)) { 66 throw new RuntimeException("proxy class in not final"); 67 } 68 if (Modifier.isAbstract(flags)) { 69 throw new RuntimeException("proxy class in abstract"); 70 } 71 72 /* 73 * Verify that it is assignable to the proxy interfaces. 74 */ 75 for (Class<?> intf : interfaces) { 76 if (!intf.isAssignableFrom(proxyClass)) { 77 throw new RuntimeException( 78 "proxy class not assignable to proxy interface " + 79 intf.getName()); 80 } 81 } 82 83 /* 84 * Verify that it has the given permutation of interfaces. 85 */ 86 List<Class<?>> l1 = Arrays.asList(interfaces); 87 List<Class<?>> l2 = Arrays.asList(proxyClass.getInterfaces()); 88 System.err.println("+ proxy class's interfaces: " + l2); 89 if (!l1.equals(l2)) { 90 throw new RuntimeException( 91 "proxy class interfaces are " + l2 + 92 " (expected " + l1 + ")"); 93 } 94 95 /* 96 * Verify that system agress that it is a proxy class. 97 */ 98 if (Proxy.isProxyClass(Object.class)) { 99 throw new RuntimeException( 100 "Proxy.isProxyClass returned true for java.lang.Object"); 101 } 102 if (!Proxy.isProxyClass(proxyClass)) { 103 throw new RuntimeException( 104 "Proxy.isProxyClass returned false for proxy class"); 105 } 106 107 /* 108 * Verify that its protection domain is the bootstrap domain. 109 */ 110 ProtectionDomain pd = proxyClass.getProtectionDomain(); 111 System.err.println("+ proxy class's protection domain: " + pd); 112 if (!pd.implies(new AllPermission())) { 113 throw new RuntimeException( 114 "proxy class does not have AllPermission"); 115 } 116 117 /* 118 * Verify that it has a constructor that takes an 119 * InvocationHandler instance. 120 */ 121 Constructor<?> cons = proxyClass.getConstructor(InvocationHandler.class); 122 123 /* 124 * Test constructor with null InvocationHandler 125 */ 126 try { 127 cons.newInstance(new Object[] { null }); 128 throw new RuntimeException("Expected NullPointerException thrown"); 129 } catch (InvocationTargetException e) { 130 Throwable t = e.getTargetException(); 131 if (!(t instanceof NullPointerException)) { 132 throw t; 133 } 134 } 135 136 /* 137 * Construct a proxy instance. 138 */ 139 Handler handler = new Handler(); 140 Object proxy = cons.newInstance(handler); 141 handler.currentProxy = proxy; 142 143 /* 144 * Invoke a method on a proxy instance. 145 */ 146 Method m = Runnable.class.getMethod("run"); 147 ((Runnable) proxy).run(); 148 if (!handler.lastMethod.equals(m)) { 149 throw new RuntimeException( 150 "proxy method invocation failure (lastMethod = " + 151 handler.lastMethod + ")"); 152 } 153 154 System.err.println("\nTEST PASSED"); 155 156 } catch (Throwable e) { 157 System.err.println("\nTEST FAILED:"); 158 e.printStackTrace(); 159 throw new RuntimeException("TEST FAILED: " + e.toString()); 160 } 161 } 162 163 public static class Handler implements InvocationHandler { 164 165 Object currentProxy; 166 Method lastMethod; 167 168 public Object invoke(Object proxy, Method method, Object[] args) 169 throws Throwable 170 { 171 if (proxy != currentProxy) { 172 throw new RuntimeException( 173 "wrong proxy instance passed to invoke method"); 174 } 175 lastMethod = method; 176 return null; 177 } 178 } 179} 180