1 /*
2 * Copyright (c) 2001, 2016, 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
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7 * published by the Free Software Foundation.
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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.
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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
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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 * @modules java.rmi/sun.rmi.registry
40 * java.rmi/sun.rmi.server
41 * java.rmi/sun.rmi.transport
42 * java.rmi/sun.rmi.transport.tcp
43 * @build TestLibrary ReferenceRegistryStub
44 * @run main/othervm InterfaceHash
45 * @key intermittent
46 */
47
48 import java.lang.reflect.Constructor;
49 import java.lang.reflect.Method;
50 import java.rmi.Remote;
51 import java.rmi.registry.Registry;
52 import java.rmi.registry.LocateRegistry;
53 import java.rmi.server.ObjID;
54 import java.rmi.server.Operation;
55 import java.rmi.server.RemoteCall;
56 import java.rmi.server.RemoteObject;
57 import java.rmi.server.RemoteRef;
58 import java.util.Arrays;
59
60 import sun.rmi.server.UnicastRef;
61 import sun.rmi.transport.LiveRef;
62 import sun.rmi.transport.tcp.TCPEndpoint;
63
64 public class InterfaceHash {
65
66 private static final String NAME = "WMM";
67
68 public static void main(String[] args) throws Exception {
69 System.err.println("\nRegression test for bug 4472769");
70
71 System.err.println(
72 "\n=== verifying that J2SE registry's skeleton uses" +
73 "\ncorrect interface hash and operation numbers:");
74
75 Registry testImpl = TestLibrary.createRegistryOnEphemeralPort();
76 int regPort = TestLibrary.getRegistryPort(testImpl);
77 System.err.println("created test registry on port " + regPort);
78
79 RemoteRef ref = new UnicastRef(
80 new LiveRef(new ObjID(ObjID.REGISTRY_ID),
81 new TCPEndpoint("", regPort), false));
82 Registry referenceStub = new ReferenceRegistryStub(ref);
83 System.err.println("created reference registry stub: " +
84 referenceStub);
85
86 referenceStub.bind(NAME, referenceStub);
87 System.err.println("bound name \"" + NAME + "\" in registry");
88
89 String[] list = referenceStub.list();
90 System.err.println("list of registry contents: " +
91 Arrays.asList(list));
92 if (list.length != 1 || !list[0].equals(NAME)) {
93 throw new RuntimeException(
94 "TEST FAILED: unexpected list contents");
95 }
96
97 Registry result = (Registry) referenceStub.lookup(NAME);
98 System.err.println("lookup of name \"" + NAME + "\" returned: " +
99 result);
100 if (!result.equals(referenceStub)) {
101 throw new RuntimeException(
102 "TEST FAILED: unexpected lookup result");
103 }
104
105 referenceStub.rebind(NAME, referenceStub);
106 referenceStub.unbind(NAME);
107 System.err.println("unbound name \"" + NAME + "\"");
108
109 list = referenceStub.list();
110 System.err.println("list of registry contents: " +
111 Arrays.asList(list));
112 if (list.length != 0) {
113 throw new RuntimeException("TEST FAILED: list not empty");
114 }
115
116 System.err.println("\n=== verifying that J2SE registry's stub uses" +
117 "correct interface hash:");
118
119 class FakeRemoteRef implements RemoteRef {
120 long hash;
121 int opnum;
122 public RemoteCall newCall(RemoteObject obj, Operation[] op,
123 int opnum, long hash)
124 {
125 this.hash = hash;
126 this.opnum = opnum;
127 throw new UnsupportedOperationException();
128 }
129 public void invoke(RemoteCall call) { }
130 public void done(RemoteCall call) { }
131 public Object invoke(Remote obj, Method method,
132 Object[] args, long hash)
133 {
134 throw new UnsupportedOperationException();
135 }
136 public String getRefClass(java.io.ObjectOutput out) {
137 return "FakeRemoteRef";
138 }
139 public int remoteHashCode() { return 1013; }
140 public boolean remoteEquals(RemoteRef obj) { return false; }
141 public String remoteToString() { return "FakeRemoteRef"; }
142 public void writeExternal(java.io.ObjectOutput out) { }
143 public void readExternal(java.io.ObjectInput in) { }
144 }
145 FakeRemoteRef f = new FakeRemoteRef();
146
147 Registry testRegistry = LocateRegistry.getRegistry(regPort);
148 System.err.println("created original test registry stub: " +
149 testRegistry);
150
151 Class stubClass = testRegistry.getClass();
152 System.err.println("test registry stub class: " + stubClass);
153
154 Constructor cons = stubClass.getConstructor(
155 new Class[] { RemoteRef.class });
156 Registry testStub = (Registry) cons.newInstance(
157 new Object[] { f });
158 System.err.println("created new instrumented test registry stub: " +
159 testStub);
160
161 System.err.println("invoking bind:");
162 try {
163 testStub.bind(NAME, referenceStub);
164 } catch (UnsupportedOperationException e) {
165 }
166 System.err.println("hash == " + f.hash + ", opnum == " + f.opnum);
167 if (f.hash != 4905912898345647071L) {
168 throw new RuntimeException("TEST FAILED: wrong interface hash");
169 } else if (f.opnum != 0) {
170 throw new RuntimeException("TEST FAILED: wrong operation number");
171 }
172
173 System.err.println("invoking list:");
174 try {
175 testStub.list();
176 } catch (UnsupportedOperationException e) {
177 }
178 System.err.println("hash == " + f.hash + ", opnum == " + f.opnum);
179 if (f.hash != 4905912898345647071L) {
180 throw new RuntimeException("TEST FAILED: wrong interface hash");
181 } else if (f.opnum != 1) {
182 throw new RuntimeException("TEST FAILED: wrong operation number");
183 }
184
185 System.err.println("invoking lookup:");
186 try {
187 testStub.lookup(NAME);
188 } catch (UnsupportedOperationException e) {
189 }
190 System.err.println("hash == " + f.hash + ", opnum == " + f.opnum);
191 if (f.hash != 4905912898345647071L) {
192 throw new RuntimeException("TEST FAILED: wrong interface hash");
193 } else if (f.opnum != 2) {
194 throw new RuntimeException("TEST FAILED: wrong operation number");
195 }
196
197 System.err.println("invoking rebind:");
198 try {
199 testStub.rebind(NAME, referenceStub);
200 } catch (UnsupportedOperationException e) {
201 }
202 System.err.println("hash == " + f.hash + ", opnum == " + f.opnum);
203 if (f.hash != 4905912898345647071L) {
204 throw new RuntimeException("TEST FAILED: wrong interface hash");
205 } else if (f.opnum != 3) {
206 throw new RuntimeException("TEST FAILED: wrong operation number");
207 }
208
209 System.err.println("invoking unbind:");
210 try {
211 testStub.unbind(NAME);
212 } catch (UnsupportedOperationException e) {
213 }
214 System.err.println("hash == " + f.hash + ", opnum == " + f.opnum);
215 if (f.hash != 4905912898345647071L) {
216 throw new RuntimeException("TEST FAILED: wrong interface hash");
217 } else if (f.opnum != 4) {
218 throw new RuntimeException("TEST FAILED: wrong operation number");
219 }
220
221 System.err.println("TEST PASSED");
222 }
223 }