DownloadParameterClass.java revision 9330:8b1f1c2a400f 
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 4149366
26 * @summary The class loader used to load classes for parameter types sent in
27 * an RMI call to an activatable object should delegate to the class loader
28 * that loaded the class of the activatable object itself, to maximize the
29 * likelihood of type compatibility between downloaded parameter types and
30 * supertypes shared with the activatable object.
31 * @author Peter Jones (much code taken from Ann Wollrath's activation tests)
32 *
33 * @library ../../../testlibrary
34 * @build TestLibrary RMID ActivationLibrary
35 *     Foo FooReceiverImpl FooReceiverImpl_Stub Bar
36 * @run main/othervm/policy=security.policy/timeout=240 DownloadParameterClass
37 */
38
39import java.io.*;
40import java.net.*;
41import java.util.*;
42import java.rmi.*;
43import java.rmi.activation.*;
44import java.rmi.server.*;
45import java.rmi.registry.*;
46
47public class DownloadParameterClass {
48
49    public interface FooReceiver extends Remote {
50
51        /*
52         * The interface can't actually declare that the method takes a
53         * Foo, because then Foo would have to be in the test's CLASSPATH,
54         * which might get propagated to the group VM's CLASSPATH, which
55         * would nullify the test (the Foo supertype must be loaded in the
56         * group VM only through the class loader that loaded the
57         * activatable object).
58         */
59        public void receiveFoo(Object obj) throws RemoteException;
60    }
61
62    public static void main(String[] args) {
63
64        System.err.println("\nRegression test for bug 4149366\n");
65
66        /*
67         * Install classes to be seen by the activatable object's class
68         * loader in the "codebase1" subdirectory of working directory, and
69         * install the subtype to be downloaded into the activatable object
70         * into the "codebase2" subdirectory.
71         */
72        URL codebase1 = null;
73        URL codebase2 = null;
74        try {
75            codebase1 = TestLibrary.installClassInCodebase("FooReceiverImpl", "codebase1");
76            TestLibrary.installClassInCodebase("FooReceiverImpl_Stub", "codebase1");
77            TestLibrary.installClassInCodebase("Foo", "codebase1");
78            codebase2 = TestLibrary.installClassInCodebase("Bar", "codebase2");
79        } catch (MalformedURLException e) {
80            TestLibrary.bomb("failed to install test classes", e);
81        }
82
83        TestLibrary.suggestSecurityManager("java.rmi.RMISecurityManager");
84
85        RMID rmid = null;
86
87        try {
88            RMID.removeLog();
89            rmid = RMID.createRMID();
90            rmid.start();
91
92            /* Cause activation groups to have a security policy that will
93             * allow security managers to be downloaded and installed
94             */
95            Properties p = new Properties();
96            // this test must always set policies/managers in its
97            // activation groups
98            p.put("java.security.policy",
99                  TestParams.defaultGroupPolicy);
100            p.put("java.security.manager",
101                  TestParams.defaultSecurityManager);
102
103            /*
104             * Create and register descriptors for activatable object in a
105             * group other than this VM's group, so that another VM will be
106             * spawned with the object is activated.
107             */
108            System.err.println("Creating descriptors");
109            ActivationGroupDesc groupDesc =
110                new ActivationGroupDesc(p, null);
111            ActivationGroupID groupID =
112                ActivationGroup.getSystem().registerGroup(groupDesc);
113            ActivationDesc objDesc =
114                new ActivationDesc(groupID, "FooReceiverImpl",
115                                   codebase1.toString(), null, false);
116
117            System.err.println("Registering descriptors");
118            FooReceiver obj = (FooReceiver) Activatable.register(objDesc);
119
120            /*
121             * Create an instance of the subtype to be downloaded by the
122             * activatable object.  The codebase must be a path including
123             * "codebase1" as well as "codebase2" because the supertype
124             * must be visible here as well; the supertype cannot be
125             * installed in both codebases (like it would be in a typical
126             * setup) because of the trivial installation mechanism used
127             * below, and see the comment above for why it can't be in
128             * the test's CLASSPATH.
129             */
130            Class subtype = RMIClassLoader.loadClass(
131                codebase2 + " " + codebase1, "Bar");
132            Object subtypeInstance = subtype.newInstance();
133
134            obj.receiveFoo(subtypeInstance);
135
136            System.err.println("\nTEST PASSED\n");
137
138        } catch (Exception e) {
139            TestLibrary.bomb("test failed", e);
140        } finally {
141            ActivationLibrary.rmidCleanup(rmid);
142        }
143    }
144}
145