DelegateToContextLoader.java revision 12057:5d60882157c9 
1/*
2 * Copyright (c) 1998, 2012, 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 4112682
26 * @summary RMIClassLoader's loadClass() method that takes explicit URLs
27 * should load classes from a class loader that delegates to the current
28 * thread's context class loader (not just the base class loader always).
29 * @author Peter Jones
30 *
31 * @library ../../../testlibrary
32 * @modules java.rmi/sun.rmi.registry
33 *          java.rmi/sun.rmi.server
34 *          java.rmi/sun.rmi.transport
35 *          java.rmi/sun.rmi.transport.tcp
36 * @build TestLibrary Dummy
37 * @run main/othervm/policy=security.policy/timeout=120 DelegateToContextLoader
38 */
39
40import java.io.*;
41import java.net.*;
42import java.security.*;
43import java.rmi.RMISecurityManager;
44import java.rmi.server.RMIClassLoader;
45
46public class DelegateToContextLoader {
47
48    /** name of target class to attempt to load */
49    private static final String className = "Dummy";
50
51    /** name of file containing definition for target class */
52    private static final String classFileName = className + ".class";
53
54    public static void main(String[] args) throws Exception {
55
56        /*
57         * Set a security manager so that RMI class loading will not
58         * be disabled.
59         */
60        TestLibrary.suggestSecurityManager("java.rmi.RMISecurityManager");
61
62
63        URL codebaseURL = TestLibrary.
64            installClassInCodebase(className, "codebase");
65
66         /* Create a URLClassLoader to load from the codebase and set it
67          * as this thread's context class loader.  We do not use the
68          * URLClassLoader.newInstance() method so that the test will
69          * compile with more early versions of the JDK.
70          *
71          * We can get away with creating a class loader like this
72          * because there is no security manager set yet.
73          */
74        ClassLoader codebaseLoader =
75            new URLClassLoader(new URL[] { codebaseURL } );
76        Thread.currentThread().setContextClassLoader(codebaseLoader);
77
78        File srcDir = new File(TestLibrary.getProperty("test.classes", "."));
79
80        URL dummyURL = new URL("file", "",
81            srcDir.getAbsolutePath().replace(File.separatorChar, '/') +
82            "/x-files/");
83
84        try {
85            /*
86             * Attempt to load the target class from the dummy URL;
87             * it should be found in the context class loader.
88             */
89            Class cl = RMIClassLoader.loadClass(dummyURL, className);
90            System.err.println("TEST PASSED: loaded class: " + cl);
91        } catch (ClassNotFoundException e) {
92            throw new RuntimeException(
93                "TEST FAILED: target class in context class loader " +
94                "not found using RMIClassLoader");
95        }
96    }
97}
98