J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1999 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 21 | * have any questions. |
| 22 | */ |
| 23 | |
| 24 | /* @test |
| 25 | * @bug 4258644 |
| 26 | * @summary ObjectInputStream's default implementation of its protected |
| 27 | * resolveProxyClass method is specified to pass the first non-null class |
| 28 | * loader up the execution stack to the Proxy.getProxyClass method when |
| 29 | * it creates the specified proxy class; this test makes sure that it does |
| 30 | * that in situations where it hadn't in the past, such as if the defining |
| 31 | * loaders of the interfaces were all strict ancestors of the first |
| 32 | * non-null loader up the stack. |
| 33 | * @author Peter Jones |
| 34 | * |
| 35 | * @build ResolveProxyClass |
| 36 | * @run main ResolveProxyClass |
| 37 | */ |
| 38 | |
| 39 | import java.lang.reflect.*; |
| 40 | import java.io.*; |
| 41 | |
| 42 | public class ResolveProxyClass { |
| 43 | |
| 44 | /* |
| 45 | * This class is a dummy ObjectInputStream subclass that allows the |
| 46 | * test code to access ObjectInputStream's protected resolveProxyClass |
| 47 | * method directly. |
| 48 | */ |
| 49 | private static class TestObjectInputStream extends ObjectInputStream { |
| 50 | |
| 51 | TestObjectInputStream() throws IOException { |
| 52 | super(); |
| 53 | } |
| 54 | |
| 55 | protected Class resolveProxyClass(String[] interfaces) |
| 56 | throws IOException, ClassNotFoundException |
| 57 | { |
| 58 | return super.resolveProxyClass(interfaces); |
| 59 | } |
| 60 | } |
| 61 | |
| 62 | public static void main(String[] args) { |
| 63 | |
| 64 | System.err.println("\nRegression test for bug 4258644\n"); |
| 65 | |
| 66 | try { |
| 67 | |
| 68 | /* |
| 69 | * Set this thread's context class loader to null, so that the |
| 70 | * resolveProxyClass implementation cannot cheat by guessing that |
| 71 | * the context class loader is the appropriate loader to pass to |
| 72 | * the Proxy.getProxyClass method. |
| 73 | */ |
| 74 | Thread.currentThread().setContextClassLoader(null); |
| 75 | |
| 76 | /* |
| 77 | * Expect the proxy class to be defined in the system class |
| 78 | * loader, because that is the defining loader of this test |
| 79 | * code, and it should be the first loader on the stack when |
| 80 | * ObjectInputStream.resolveProxyClass gets executed. |
| 81 | */ |
| 82 | ClassLoader expectedLoader = ClassLoader.getSystemClassLoader(); |
| 83 | |
| 84 | TestObjectInputStream in = new TestObjectInputStream(); |
| 85 | Class proxyClass = in.resolveProxyClass( |
| 86 | new String[] { Runnable.class.getName() }); |
| 87 | ClassLoader proxyLoader = proxyClass.getClassLoader(); |
| 88 | System.err.println("proxy class \"" + proxyClass + |
| 89 | "\" defined in loader: " + proxyLoader); |
| 90 | |
| 91 | if (proxyLoader != expectedLoader) { |
| 92 | throw new RuntimeException( |
| 93 | "proxy class defined in loader: " + proxyLoader); |
| 94 | } |
| 95 | |
| 96 | System.err.println("\nTEST PASSED"); |
| 97 | |
| 98 | } catch (Throwable e) { |
| 99 | System.err.println("\nTEST FAILED:"); |
| 100 | e.printStackTrace(); |
| 101 | throw new RuntimeException("TEST FAILED: " + e.toString()); |
| 102 | } |
| 103 | } |
| 104 | } |