1/* 2 * Copyright (c) 2000, 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 * @summary When an object is retrieved from a MarshalledObject, callbacks 26 * that were registered by objects in the graph for execution when the 27 * unmarshalling is done should get executed. This is verified by way of 28 * an exported object's stub getting unmarshalled, and then garbage 29 * collected, in which case the impl's unreferenced() method should get 30 * invoked. 31 * @author Peter Jones 32 * 33 * @build MarshalledObjectGet_Stub 34 * @run main/othervm/timeout=120 MarshalledObjectGet 35 */ 36 37import java.rmi.MarshalledObject; 38import java.rmi.Remote; 39import java.rmi.server.UnicastRemoteObject; 40import java.rmi.server.Unreferenced; 41 42public class MarshalledObjectGet implements Remote, Unreferenced { 43 44 private static final String BINDING = "MarshalledObjectGet"; 45 private static final long GC_INTERVAL = 6000; 46 private static final long TIMEOUT = 50000; 47 48 private Object lock = new Object(); 49 private boolean unreferencedInvoked; 50 51 public void unreferenced() { 52 System.err.println("unreferenced() method invoked"); 53 synchronized (lock) { 54 unreferencedInvoked = true; 55 lock.notify(); 56 } 57 } 58 59 public static void main(String[] args) { 60 61 System.err.println( 62 "\nTest to verify correction interaction of " + 63 "MarshalledObject.get and DGC registration\n"); 64 65 /* 66 * Set the interval that RMI will request for GC latency (before RMI 67 * gets initialized and this property is read) to an unrealistically 68 * small value, so that this test shouldn't have to wait too long. 69 */ 70 System.setProperty("sun.rmi.dgc.client.gcInterval", 71 String.valueOf(GC_INTERVAL)); 72 73 MarshalledObjectGet obj = new MarshalledObjectGet(); 74 75 try { 76 Remote stub = UnicastRemoteObject.exportObject(obj); 77 System.err.println("exported remote object"); 78 79 MarshalledObject mobj = new MarshalledObject(stub); 80 Remote unmarshalledStub = (Remote) mobj.get(); 81 System.err.println("unmarshalled stub from marshalled object"); 82 83 synchronized (obj.lock) { 84 obj.unreferencedInvoked = false; 85 86 unmarshalledStub = null; 87 System.gc(); 88 System.err.println("cleared unmarshalled stub"); 89 System.err.println("waiting for unreferenced() callback " + 90 "(SHOULD happen)..."); 91 obj.lock.wait(TIMEOUT); 92 93 if (obj.unreferencedInvoked) { 94 // TEST PASSED 95 } else { 96 throw new RuntimeException( 97 "TEST FAILED: unrefereced() not invoked after " + 98 ((double) TIMEOUT / 1000.0) + " seconds"); 99 } 100 } 101 102 System.err.println("TEST PASSED"); 103 104 } catch (Exception e) { 105 if (e instanceof RuntimeException) { 106 throw (RuntimeException) e; 107 } else { 108 throw new RuntimeException( 109 "TEST FAILED: unexpected exception: " + e.toString()); 110 } 111 } finally { 112 if (obj != null) { 113 try { 114 UnicastRemoteObject.unexportObject(obj, true); 115 } catch (Exception e) { 116 } 117 } 118 } 119 } 120} 121