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. 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 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 int PORT = TestLibrary.getUnusedRandomPort(); 67 private static final String NAME = "WMM"; 68 69 public static void main(String[] args) throws Exception { 70 System.err.println("\nRegression test for bug 4472769"); 71 72 System.err.println( 73 "\n=== verifying that J2SE registry's skeleton uses" + 74 "\ncorrect interface hash and operation numbers:"); 75 76 Registry testImpl = LocateRegistry.createRegistry(PORT); 77 System.err.println("created test registry on port " + PORT); 78 79 RemoteRef ref = new UnicastRef( 80 new LiveRef(new ObjID(ObjID.REGISTRY_ID), 81 new TCPEndpoint("", PORT), 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(PORT); 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 }