| /* |
| * Copyright (c) 1998, 2008, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* @test |
| * @bug 4171278 |
| * @summary A remote object's unreferenced() method should be invoked with the |
| * context class loader set to the same context class loader that would be set |
| * when remote calls for that object are being executed: the object's class's |
| * class loader, or the context class loader set when the remote object was |
| * exported, if it is a child of the remote object's class loader. |
| * @author Peter Jones |
| * |
| * @bug 4214123 |
| * @summary Unreferenced.unreferenced(...) threads should run in the nonSystem group. |
| * To complete the fix for, 4182104, RMI unreferenced threads should also |
| * run in the nonSystem so that they do not need permissions to modify the |
| * system thread group. |
| * |
| * @author Laird Dornin |
| * |
| * @library ../../../testlibrary |
| * @build UnreferencedContext |
| * @build UnreferencedContext_Stub |
| * @run main/othervm/timeout=120 UnreferencedContext |
| */ |
| |
| import java.net.*; |
| import java.rmi.*; |
| import java.rmi.registry.*; |
| import java.rmi.server.*; |
| |
| public class UnreferencedContext implements Remote, Unreferenced, Runnable { |
| |
| private final static String BINDING = "UnreferencedContext"; |
| private final static long GC_INTERVAL = 6000; |
| private final static long TIMEOUT = 60000; |
| |
| private Object lock = new Object(); |
| private boolean unreferencedInvoked = false; |
| private ClassLoader unreferencedContext; |
| |
| public void run() { |
| System.err.println("unreferenced method created thread succesfully"); |
| } |
| |
| public void unreferenced() { |
| // turn on security to ensure that the action below will not |
| // require extra permissions |
| System.setSecurityManager(new java.rmi.RMISecurityManager()); |
| |
| // exercise functionality prohibited by 4214123 |
| (new Thread(this)).start(); |
| |
| System.err.println("unreferenced() method invoked"); |
| synchronized (lock) { |
| unreferencedInvoked = true; |
| unreferencedContext = |
| Thread.currentThread().getContextClassLoader(); |
| lock.notify(); |
| } |
| } |
| |
| public static void main(String[] args) { |
| |
| System.err.println("\nRegression test for bug 4171278\n"); |
| |
| /* |
| * Set the interval that RMI will request for GC latency (before RMI |
| * gets initialized and this property is read) to an unrealistically |
| * small value, so that this test shouldn't have to wait too long. |
| */ |
| System.setProperty("sun.rmi.dgc.client.gcInterval", |
| String.valueOf(GC_INTERVAL)); |
| |
| UnreferencedContext obj = new UnreferencedContext(); |
| |
| try { |
| /* |
| * This little trick is necessary to make sure that the RMI server |
| * threads for objects created on the default port get created |
| * before we set our special context class loader, so that they |
| * don't *accidentally* inherit it when making the unreferenced() |
| * callback. |
| */ |
| UnicastRemoteObject.exportObject(obj); |
| UnicastRemoteObject.unexportObject(obj, true); |
| |
| /* |
| * Now create special context class loader before exporting the |
| * remote object for real, so that it should be set when the |
| * object's unreferenced() method is called. |
| */ |
| ClassLoader intendedContext = new URLClassLoader(new URL[0]); |
| Thread.currentThread().setContextClassLoader(intendedContext); |
| System.err.println( |
| "created and set intended context class loader: " + |
| intendedContext); |
| |
| UnicastRemoteObject.exportObject(obj); |
| System.err.println("exported remote object"); |
| |
| LocateRegistry.createRegistry(TestLibrary.REGISTRY_PORT); |
| System.err.println("created registry"); |
| |
| Registry registry = LocateRegistry.getRegistry("", TestLibrary.REGISTRY_PORT); |
| registry.bind(BINDING, obj); |
| System.err.println("bound remote object in registry"); |
| |
| synchronized (obj.lock) { |
| registry.unbind(BINDING); |
| System.err.println("unbound remote object from registry; " + |
| "waiting for unreferenced() callback..."); |
| /* |
| * This incantation seems sufficient to work around the |
| * ramifications of 4164696, so that this test will actually |
| * prove something useful about 1.2Beta4 or 1.2FCS before |
| * 4171278 was fixed. |
| */ |
| for (int i = 0; i < 10; i++) { |
| System.gc(); |
| obj.lock.wait(TIMEOUT / 10); |
| if (obj.unreferencedInvoked) { |
| break; |
| } |
| } |
| |
| if (obj.unreferencedInvoked) { |
| System.err.println( |
| "invoked with context class loader: " + |
| obj.unreferencedContext); |
| |
| if (obj.unreferencedContext == intendedContext) { |
| System.err.println( |
| "TEST PASSED: unreferenced() invoked" + |
| " with intended context class loader"); |
| } else { |
| throw new RuntimeException( |
| "TEST FAILED: unreferenced() invoked" + |
| " with incorrect context class loader"); |
| } |
| } else { |
| throw new RuntimeException( |
| "TEST FAILED: unreferenced() not invoked after " + |
| ((double) TIMEOUT / 1000.0) + " seconds or unreferenced failed to create a thread"); |
| } |
| } |
| |
| } catch (Exception e) { |
| if (e instanceof RuntimeException) { |
| throw (RuntimeException) e; |
| } else { |
| throw new RuntimeException( |
| "TEST FAILED: unexpected exception: " + e.toString()); |
| } |
| } finally { |
| /* |
| * When all is said and done, try to unexport the remote object |
| * so that the VM has a chance to exit. |
| */ |
| try { |
| UnicastRemoteObject.unexportObject(obj, true); |
| } catch (RemoteException e) { |
| } |
| } |
| } |
| } |