138 lines
4.9 KiB
Java
138 lines
4.9 KiB
Java
/*
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* Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/* @test
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* @bug 4308492
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* @summary In addition to keeping the VM alive (with a non-daeman thread)
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* while there are remote objects exported, the RMI runtime should also
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* keep it alive while there remain calls in progress (to remote objects
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* the have presumably been unexported), so that a remote object can more
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* conveniently implement a graceful remote shutdown method (that unexports
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* the object).
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* @author Peter Jones
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*
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* @library ../../../testlibrary
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* @build TestLibrary JavaVM KeepAliveDuringCall_Stub
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* ShutdownMonitor Shutdown ShutdownImpl ShutdownImpl_Stub
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* @run main/othervm KeepAliveDuringCall
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*/
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import java.rmi.Remote;
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import java.rmi.RemoteException;
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import java.rmi.registry.LocateRegistry;
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import java.rmi.registry.Registry;
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import java.rmi.server.UnicastRemoteObject;
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public class KeepAliveDuringCall implements ShutdownMonitor {
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public static final String BINDING = "KeepAliveDuringCall";
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private static final int TIMEOUT = 20000;
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private Object lock = new Object();
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private Shutdown shutdown = null;
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private boolean stillAlive = false;
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public void submitShutdown(Shutdown shutdown) {
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synchronized (lock) {
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this.shutdown = shutdown;
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lock.notifyAll();
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}
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}
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public void declareStillAlive() {
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synchronized (lock) {
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stillAlive = true;
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lock.notifyAll();
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}
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}
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public static void main(String[] args) {
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System.err.println("\nRegression test for bug 4308492\n");
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KeepAliveDuringCall obj = new KeepAliveDuringCall();
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try {
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UnicastRemoteObject.exportObject(obj);
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System.err.println("exported shutdown monitor");
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Registry localRegistry = TestLibrary.createRegistryOnUnusedPort();
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int registryPort = TestLibrary.getRegistryPort(localRegistry);
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System.err.println("created local registry");
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localRegistry.bind(BINDING, obj);
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System.err.println("bound shutdown monitor in local registry");
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System.err.println("starting remote ShutdownImpl VM...");
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(new JavaVM("ShutdownImpl",
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"-Drmi.registry.port=" +
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registryPort, "")).start();
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Shutdown s;
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synchronized (obj.lock) {
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System.err.println(
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"waiting for submission of object to shutdown...");
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while ((s = obj.shutdown) == null) {
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obj.lock.wait(TIMEOUT);
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}
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if (s == null) {
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throw new RuntimeException(
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"TEST FAILED: timeout waiting for shutdown object " +
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"to make initial contact");
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}
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System.err.println("shutdown object submitted: " + s);
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}
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try {
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s.shutdown();
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} catch (RemoteException e) {
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throw new RuntimeException(
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"TEST FAILED: shutdown method threw remote exception", e);
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}
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synchronized (obj.lock) {
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if (!obj.stillAlive) {
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throw new RuntimeException("TEST FAILED: " +
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"shutdown object not detected alive after unexport");
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}
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}
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System.err.println("TEST PASSED: " +
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"shutdown object detected still alive after unexport");
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} catch (Exception e) {
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if (e instanceof RuntimeException) {
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throw (RuntimeException) e;
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} else {
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throw new RuntimeException(
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"TEST FAILED: unexpected exception", e);
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}
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} finally {
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try {
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UnicastRemoteObject.unexportObject(obj, true);
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} catch (RemoteException e) {
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}
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}
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}
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}
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