| /* |
| * Copyright (c) 2005, 2015, 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 4401399 |
| * @summary Simple basic test of jdi Monitor request and event. |
| * @author Swamy Venkataramanappa |
| * |
| * @run build TestScaffold VMConnection TargetListener TargetAdapter |
| * @run compile -g MonitorEventTest.java |
| * @run driver MonitorEventTest |
| */ |
| import com.sun.jdi.*; |
| import com.sun.jdi.event.*; |
| import com.sun.jdi.request.*; |
| |
| import java.util.*; |
| |
| /********** target program **********/ |
| |
| class MonitorTestTarg { |
| public static Object endingMonitor; |
| public static Object startingMonitor; |
| public static final long timeout = 30 * 6000; // milliseconds |
| |
| public static volatile boolean aboutEnterLock; |
| |
| static void foo() { |
| System.out.println("Howdy!"); |
| } |
| |
| public static void main(String[] args){ |
| endingMonitor = new Object(); |
| startingMonitor = new Object(); |
| |
| myThread t1 = new myThread(); |
| foo(); |
| aboutEnterLock = false; |
| |
| synchronized(endingMonitor) { |
| |
| // run thread |
| try { |
| // start thread |
| synchronized (startingMonitor) { |
| t1.start(); |
| startingMonitor.wait(timeout); |
| } |
| } catch (InterruptedException e) { |
| System.out.println("Interrupted exception " + e); |
| } |
| |
| Thread.yield(); |
| while(!(aboutEnterLock && t1.getState() == Thread.State.BLOCKED)) { |
| try { |
| Thread.sleep(1000); |
| }catch(Exception x){ |
| System.out.println(x); |
| } |
| } |
| } |
| try { |
| t1.join(timeout); |
| } catch (Exception x){ |
| System.out.println("Exception while thread.join :" + x); |
| } |
| System.out.println("Test exiting"); |
| } |
| } |
| |
| class myThread extends Thread { |
| public void run() { |
| synchronized(MonitorTestTarg.startingMonitor) { |
| MonitorTestTarg.startingMonitor.notify(); |
| } |
| |
| // contended enter wait until main thread release monitor |
| MonitorTestTarg.aboutEnterLock = true; |
| synchronized (MonitorTestTarg.endingMonitor) { |
| } |
| } |
| } |
| |
| |
| /********** test program **********/ |
| |
| public class MonitorEventTest extends TestScaffold { |
| ReferenceType targetClass; |
| ThreadReference mainThread; |
| List monitors; |
| MonitorContendedEnterRequest contendedEnterRequest; |
| MonitorWaitedRequest monitorWaitedRequest; |
| MonitorContendedEnteredRequest contendedEnteredRequest; |
| MonitorWaitRequest monitorWaitRequest; |
| |
| static int actualWaitCount = 0; |
| static int actualWaitedCount = 0; |
| static int actualContendedEnterCount = 0; |
| static int actualContendedEnteredCount= 0; |
| |
| MonitorEventTest (String args[]) { |
| super(args); |
| } |
| |
| public static void main(String[] args) throws Exception { |
| new MonitorEventTest(args).startTests(); |
| } |
| |
| /********** event handlers **********/ |
| |
| public void monitorContendedEnter(MonitorContendedEnterEvent event) { |
| |
| actualContendedEnterCount++; |
| } |
| |
| public void monitorContendedEntered(MonitorContendedEnteredEvent event) { |
| |
| actualContendedEnteredCount++; |
| |
| } |
| |
| public void monitorWait(MonitorWaitEvent event) { |
| |
| actualWaitCount++; |
| |
| } |
| public void monitorWaited(MonitorWaitedEvent event) { |
| |
| actualWaitedCount++; |
| |
| } |
| |
| |
| |
| /********** test core **********/ |
| |
| protected void runTests() throws Exception { |
| /* |
| * Get to the top of main() |
| * to determine targetClass and mainThread |
| */ |
| BreakpointEvent bpe = startToMain("MonitorTestTarg"); |
| targetClass = bpe.location().declaringType(); |
| mainThread = bpe.thread(); |
| |
| int initialSize = mainThread.frames().size(); |
| if (vm().canRequestMonitorEvents()) { |
| contendedEnterRequest = eventRequestManager().createMonitorContendedEnterRequest(); |
| contendedEnterRequest.setSuspendPolicy(EventRequest.SUSPEND_NONE); |
| contendedEnterRequest.enable(); |
| contendedEnteredRequest = eventRequestManager().createMonitorContendedEnteredRequest(); |
| contendedEnteredRequest.setSuspendPolicy(EventRequest.SUSPEND_NONE); |
| contendedEnteredRequest.enable(); |
| monitorWaitRequest = eventRequestManager().createMonitorWaitRequest(); |
| monitorWaitRequest.setSuspendPolicy(EventRequest.SUSPEND_NONE); |
| monitorWaitRequest.enable(); |
| monitorWaitedRequest = eventRequestManager().createMonitorWaitedRequest(); |
| monitorWaitedRequest.setSuspendPolicy(EventRequest.SUSPEND_NONE); |
| monitorWaitedRequest.enable(); |
| } else { |
| System.out.println("request monitor events not supported " ); |
| } |
| |
| |
| resumeTo("MonitorTestTarg", "foo", "()V"); |
| |
| /* |
| * resume until end |
| */ |
| listenUntilVMDisconnect(); |
| |
| /* |
| * At least one of each type event should have recevied by this test. |
| */ |
| if (vm().canRequestMonitorEvents()) { |
| if (actualContendedEnterCount == 0) { |
| failure("Did not receive any contended enter event."); |
| } |
| if (actualContendedEnteredCount == 0) { |
| failure("Did not receive any contended entered event. "); |
| } |
| if (actualWaitCount == 0) { |
| failure("Did not receive any contended monitor wait event"); |
| } |
| if (actualWaitedCount == 0) { |
| failure("Did not receive any contended monitor waited event"); |
| } |
| } |
| |
| |
| /* |
| * deal with results of test |
| * if anything has called failure("foo") testFailed will be true |
| */ |
| if (!testFailed) { |
| println("MonitorEventTest: passed"); |
| } else { |
| throw new Exception("MonitorEventTest: failed"); |
| } |
| } |
| } |