1 /*
2 * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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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 4472769
26 * @summary Stubs and skeletons used to implement the RMI registry
27 * implementation and the bootstrap stubs must always follow certain
28 * "well known" protocols so that they otherwise need not be in sync--
29 * in other words, a registry stub from any arbitrary J2SE vendor and
30 * version must be able to communicate with a registry skeleton from
31 * any other arbitrary J2SE vendor and version. In addition to
32 * (unfortunately) using the old "-v1.1" stub/skeleton invocation
33 * protocol, with its unevolvable operation number scheme, they must
34 * always use the same value for the -v1.1 stub/skeleton
35 * "interface hash": 4905912898345647071L.
36 *
37 * @author Peter Jones
38 * @library ../../testlibrary
39 * @build TestLibrary ReferenceRegistryStub
40 * @run main/othervm InterfaceHash
41 * @key intermittent
42 */
43
44 import java.lang.reflect.Constructor;
45 import java.lang.reflect.Method;
46 import java.rmi.Remote;
47 import java.rmi.registry.Registry;
48 import java.rmi.registry.LocateRegistry;
49 import java.rmi.server.ObjID;
50 import java.rmi.server.Operation;
51 import java.rmi.server.RemoteCall;
52 import java.rmi.server.RemoteObject;
53 import java.rmi.server.RemoteRef;
54 import java.util.Arrays;
55
56 import sun.rmi.server.UnicastRef;
57 import sun.rmi.transport.LiveRef;
58 import sun.rmi.transport.tcp.TCPEndpoint;
59
60 public class InterfaceHash {
61
62 private static final int PORT = TestLibrary.getUnusedRandomPort();
63 private static final String NAME = "WMM";
64
65 public static void main(String[] args) throws Exception {
66 System.err.println("\nRegression test for bug 4472769");
67
68 System.err.println(
69 "\n=== verifying that J2SE registry's skeleton uses" +
70 "\ncorrect interface hash and operation numbers:");
71
72 Registry testImpl = LocateRegistry.createRegistry(PORT);
73 System.err.println("created test registry on port " + PORT);
74
75 RemoteRef ref = new UnicastRef(
76 new LiveRef(new ObjID(ObjID.REGISTRY_ID),
77 new TCPEndpoint("", PORT), false));
78 Registry referenceStub = new ReferenceRegistryStub(ref);
79 System.err.println("created reference registry stub: " +
80 referenceStub);
81
82 referenceStub.bind(NAME, referenceStub);
83 System.err.println("bound name \"" + NAME + "\" in registry");
84
85 String[] list = referenceStub.list();
86 System.err.println("list of registry contents: " +
87 Arrays.asList(list));
88 if (list.length != 1 || !list[0].equals(NAME)) {
89 throw new RuntimeException(
90 "TEST FAILED: unexpected list contents");
91 }
92
93 Registry result = (Registry) referenceStub.lookup(NAME);
94 System.err.println("lookup of name \"" + NAME + "\" returned: " +
95 result);
96 if (!result.equals(referenceStub)) {
97 throw new RuntimeException(
98 "TEST FAILED: unexpected lookup result");
99 }
100
101 referenceStub.rebind(NAME, referenceStub);
102 referenceStub.unbind(NAME);
103 System.err.println("unbound name \"" + NAME + "\"");
104
105 list = referenceStub.list();
106 System.err.println("list of registry contents: " +
107 Arrays.asList(list));
108 if (list.length != 0) {
109 throw new RuntimeException("TEST FAILED: list not empty");
110 }
111
112 System.err.println("\n=== verifying that J2SE registry's stub uses" +
113 "correct interface hash:");
114
115 class FakeRemoteRef implements RemoteRef {
116 long hash;
117 int opnum;
118 public RemoteCall newCall(RemoteObject obj, Operation[] op,
119 int opnum, long hash)
120 {
121 this.hash = hash;
122 this.opnum = opnum;
123 throw new UnsupportedOperationException();
124 }
125 public void invoke(RemoteCall call) { }
126 public void done(RemoteCall call) { }
127 public Object invoke(Remote obj, Method method,
128 Object[] args, long hash)
129 {
130 throw new UnsupportedOperationException();
131 }
132 public String getRefClass(java.io.ObjectOutput out) {
133 return "FakeRemoteRef";
134 }
135 public int remoteHashCode() { return 1013; }
136 public boolean remoteEquals(RemoteRef obj) { return false; }
137 public String remoteToString() { return "FakeRemoteRef"; }
138 public void writeExternal(java.io.ObjectOutput out) { }
139 public void readExternal(java.io.ObjectInput in) { }
140 }
141 FakeRemoteRef f = new FakeRemoteRef();
142
143 Registry testRegistry = LocateRegistry.getRegistry(PORT);
144 System.err.println("created original test registry stub: " +
145 testRegistry);
146
147 Class stubClass = testRegistry.getClass();
148 System.err.println("test registry stub class: " + stubClass);
149
150 Constructor cons = stubClass.getConstructor(
151 new Class[] { RemoteRef.class });
152 Registry testStub = (Registry) cons.newInstance(
153 new Object[] { f });
154 System.err.println("created new instrumented test registry stub: " +
155 testStub);
156
157 System.err.println("invoking bind:");
158 try {
159 testStub.bind(NAME, referenceStub);
160 } catch (UnsupportedOperationException e) {
161 }
162 System.err.println("hash == " + f.hash + ", opnum == " + f.opnum);
163 if (f.hash != 4905912898345647071L) {
164 throw new RuntimeException("TEST FAILED: wrong interface hash");
165 } else if (f.opnum != 0) {
166 throw new RuntimeException("TEST FAILED: wrong operation number");
167 }
168
169 System.err.println("invoking list:");
170 try {
171 testStub.list();
172 } catch (UnsupportedOperationException e) {
173 }
174 System.err.println("hash == " + f.hash + ", opnum == " + f.opnum);
175 if (f.hash != 4905912898345647071L) {
176 throw new RuntimeException("TEST FAILED: wrong interface hash");
177 } else if (f.opnum != 1) {
178 throw new RuntimeException("TEST FAILED: wrong operation number");
179 }
180
181 System.err.println("invoking lookup:");
182 try {
183 testStub.lookup(NAME);
184 } catch (UnsupportedOperationException e) {
185 }
186 System.err.println("hash == " + f.hash + ", opnum == " + f.opnum);
187 if (f.hash != 4905912898345647071L) {
188 throw new RuntimeException("TEST FAILED: wrong interface hash");
189 } else if (f.opnum != 2) {
190 throw new RuntimeException("TEST FAILED: wrong operation number");
191 }
192
193 System.err.println("invoking rebind:");
194 try {
195 testStub.rebind(NAME, referenceStub);
196 } catch (UnsupportedOperationException e) {
197 }
198 System.err.println("hash == " + f.hash + ", opnum == " + f.opnum);
199 if (f.hash != 4905912898345647071L) {
200 throw new RuntimeException("TEST FAILED: wrong interface hash");
201 } else if (f.opnum != 3) {
202 throw new RuntimeException("TEST FAILED: wrong operation number");
203 }
204
205 System.err.println("invoking unbind:");
206 try {
207 testStub.unbind(NAME);
208 } catch (UnsupportedOperationException e) {
209 }
210 System.err.println("hash == " + f.hash + ", opnum == " + f.opnum);
211 if (f.hash != 4905912898345647071L) {
212 throw new RuntimeException("TEST FAILED: wrong interface hash");
213 } else if (f.opnum != 4) {
214 throw new RuntimeException("TEST FAILED: wrong operation number");
215 }
216
217 System.err.println("TEST PASSED");
218 }
219 }