1 /* 2 * Copyright (c) 1998, 2008, 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 /* 25 */ 26 27 import java.rmi.*; 28 import sun.rmi.transport.*; 29 import sun.rmi.*; 30 import java.io.*; 31 import java.lang.reflect.*; 32 import java.rmi.dgc.*; 33 import java.util.*; 34 import java.rmi.registry.*; 35 import java.rmi.server.*; 36 37 public class TestImpl extends UnicastRemoteObject 38 implements Test { 39 40 static Thread locker = null; 41 static TestImpl foo = null; 42 static TestImpl bar = null; 43 44 TestImpl() throws RemoteException { 45 } 46 47 public String echo(String msg) throws RemoteException { 48 49 if (locker == null) { 50 // hold the target if not already held 51 locker = lockTargetExpireLeases(foo, DGCDeadLock.HOLD_TARGET_TIME); 52 } 53 return "Message received: " + msg; 54 } 55 56 static public void main(String[] args) { 57 Registry registry = null; 58 59 try { 60 registry = java.rmi.registry.LocateRegistry. 61 createRegistry(TestLibrary.REGISTRY_PORT); 62 63 //export "Foo" 64 foo = new TestImpl(); 65 Naming.rebind("rmi://:" + 66 TestLibrary.REGISTRY_PORT 67 + "/Foo", foo); 68 69 try { 70 //export "Bar" after leases have been expired. 71 bar = new TestImpl(); 72 Naming.rebind("rmi://localhost:" + 73 TestLibrary.REGISTRY_PORT 74 + "/Bar", bar); 75 } catch (Exception e) { 76 throw new RemoteException(e.getMessage()); 77 } 78 Thread.sleep(DGCDeadLock.TEST_FAIL_TIME); 79 System.err.println("object vm exiting..."); 80 System.exit(0); 81 82 } catch (Exception e) { 83 System.err.println(e.getMessage()); 84 e.printStackTrace(); 85 } finally { 86 TestLibrary.unexport(registry); 87 registry = null; 88 } 89 } 90 91 static Thread lockTargetExpireLeases(Remote toLock, int timeOut) { 92 Thread t = new Thread((Runnable) new TargetLocker(toLock, timeOut)); 93 t.start(); | 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 /* 25 */ 26 27 import java.rmi.*; 28 import sun.rmi.transport.*; 29 import sun.rmi.*; 30 import java.io.*; 31 import java.lang.reflect.*; 32 import java.rmi.dgc.*; 33 import java.util.*; 34 import java.rmi.registry.*; 35 import java.rmi.server.*; 36 37 public class TestImpl extends UnicastRemoteObject 38 implements Test { 39 static Thread locker = null; 40 static TestImpl foo = null; 41 static TestImpl bar = null; 42 43 TestImpl() throws RemoteException { 44 } 45 46 public String echo(String msg) throws RemoteException { 47 48 if (locker == null) { 49 // hold the target if not already held 50 locker = lockTargetExpireLeases(foo, DGCDeadLock.HOLD_TARGET_TIME); 51 } 52 return "Message received: " + msg; 53 } 54 55 static public void main(String[] args) { 56 Registry registry = null; 57 58 try { 59 int registryPort = Integer.parseInt(System.getProperty("rmi.registry.port")); 60 registry = java.rmi.registry.LocateRegistry. 61 createRegistry(registryPort); 62 63 //export "Foo" 64 foo = new TestImpl(); 65 Naming.rebind("rmi://:" + 66 registryPort 67 + "/Foo", foo); 68 69 try { 70 //export "Bar" after leases have been expired. 71 bar = new TestImpl(); 72 Naming.rebind("rmi://localhost:" + 73 registryPort 74 + "/Bar", bar); 75 } catch (Exception e) { 76 throw new RemoteException(e.getMessage()); 77 } 78 Thread.sleep(DGCDeadLock.TEST_FAIL_TIME); 79 System.err.println("object vm exiting..."); 80 System.exit(0); 81 82 } catch (Exception e) { 83 System.err.println(e.getMessage()); 84 e.printStackTrace(); 85 } finally { 86 TestLibrary.unexport(registry); 87 registry = null; 88 } 89 } 90 91 static Thread lockTargetExpireLeases(Remote toLock, int timeOut) { 92 Thread t = new Thread((Runnable) new TargetLocker(toLock, timeOut)); 93 t.start(); |