| /* |
| * Copyright (c) 2007, 2018, 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. |
| */ |
| |
| package nsk.monitoring.share.thread; |
| |
| import java.lang.management.*; |
| import nsk.share.log.*; |
| import java.util.Map; |
| import java.util.HashMap; |
| |
| /** |
| * Scenario that starts two threads that use locks * to synchronize. |
| * Based on tests/java/lang/management/ThreadMXBean/LockingThread.java. |
| */ |
| public class LockingThreads implements ThreadMonitoringScenario, LogAware { |
| private static final String[] expectedMethodsThread1 = { |
| "nsk.monitoring.share.thread.LockingThreads$Thread1.runInside", |
| "nsk.monitoring.share.thread.LockingThreads$Thread1.A", |
| "nsk.monitoring.share.thread.LockingThreads$Thread1.B", |
| "nsk.monitoring.share.thread.LockingThreads$Thread1.C", |
| "nsk.monitoring.share.thread.LockingThreads$Thread1.D", |
| "java.lang.Object.wait", |
| }; |
| private static final String[] expectedMethodsThread2 = { |
| "nsk.monitoring.share.thread.LockingThreads$Thread2.runInside", |
| "java.lang.Object.wait", |
| }; |
| private CustomLock lock1 = new CustomLock("lock1"); |
| private CustomLock lock2 = new CustomLock("lock2"); |
| private CustomLock lock3 = new CustomLock("lock3"); |
| private CustomLock lock4 = new CustomLock("lock4"); |
| private CustomLock lock5 = new CustomLock("lock5"); |
| private CustomLock lock6 = new CustomLock("lock6"); |
| private CustomLock lock7 = new CustomLock("lock7"); |
| private CustomLock lock8 = new CustomLock("lock8"); |
| private MonitoringThread thread1; |
| private MonitoringThread thread2; |
| private Log log; |
| private RunType recursionType; |
| private int maxDepth; |
| |
| static { |
| System.loadLibrary("LockingThreads"); |
| } |
| |
| public LockingThreads(Log log, RunType recursionType, int maxDepth) { |
| setLog(log); |
| this.recursionType = recursionType; |
| this.maxDepth = maxDepth; |
| } |
| |
| static class CustomLock { |
| private String name; |
| |
| public CustomLock(String name) { |
| this.name = name; |
| } |
| |
| public String toString() { |
| return name; |
| } |
| } |
| |
| private class Thread1 extends RecursiveMonitoringThread { |
| private volatile boolean ready = false; |
| private Object readyLock = new Object(); |
| private CustomLock lock4; |
| private CustomLock lock5; |
| private Map<String, Object[]> lockedMonitors = new HashMap<String, Object[]>(); |
| |
| public Thread1(Log log, RunType recursionType, int maxDepth) { |
| super(log, recursionType, maxDepth); |
| lock4 = LockingThreads.this.lock4; |
| lock5 = LockingThreads.this.lock5; |
| lockedMonitors.put("D", new Object[] {}); |
| lockedMonitors.put("C", new Object[] { lock6 }); |
| lockedMonitors.put("B", new Object[] { lock5, lock4 }); |
| lockedMonitors.put("A", new Object[] { lock3, lock2, lock1}); |
| } |
| |
| public void checkThreadInfo(ThreadInfo info) { |
| super.checkThreadInfo(info); |
| checkLockInfo(info.getLockInfo(), lock7); |
| checkMonitorInfo(info.getLockedMonitors(), lockedMonitors); |
| } |
| |
| protected void runInside() { |
| A(); |
| } |
| |
| void A() { |
| synchronized (lock1) { |
| synchronized(lock2) { |
| synchronized(lock3) { |
| B(); |
| } |
| } |
| } |
| } |
| |
| private native void B(); |
| |
| /* |
| void B() { |
| synchronized (lock4) { |
| synchronized(lock5) { |
| C(); |
| } |
| } |
| } |
| */ |
| |
| void C() { |
| synchronized (lock6) { |
| D(); |
| } |
| } |
| |
| void D() { |
| synchronized (lock7) { |
| try { |
| synchronized (readyLock) { |
| ready = true; |
| readyLock.notifyAll(); |
| } |
| lock7.wait(); |
| } catch (InterruptedException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| } |
| |
| public void waitState() { |
| synchronized (readyLock) { |
| while (!ready) { |
| try { |
| readyLock.wait(); |
| } catch (InterruptedException e) { |
| log.warn(e); |
| } |
| } |
| } |
| waitThreadState(Thread.State.WAITING); |
| } |
| |
| public void finish() { |
| synchronized (lock7) { |
| lock7.notifyAll(); |
| } |
| } |
| |
| protected boolean isStackTraceElementExpected(StackTraceElement element) { |
| return super.isStackTraceElementExpected(element) || checkStackTraceElement(element, expectedMethodsThread1); |
| } |
| } |
| |
| private class Thread2 extends RecursiveMonitoringThread { |
| private boolean ready = false; |
| private Object readyLock = new Object(); |
| private Map<String, Object[]> lockedMonitors = new HashMap<String, Object[]>(); |
| |
| public Thread2(Log log, RunType recursionType, int maxDepth) { |
| super(log, recursionType, maxDepth); |
| } |
| |
| public void checkThreadInfo(ThreadInfo info) { |
| super.checkThreadInfo(info); |
| checkLockInfo(info.getLockInfo(), lock8); |
| ThreadUtils.printMonitorInfo(log, info.getLockedMonitors()); |
| checkMonitorInfo(info.getLockedMonitors(), lockedMonitors); |
| } |
| |
| protected void runInside() { |
| synchronized (lock8) { |
| try { |
| synchronized (readyLock) { |
| ready = true; |
| readyLock.notifyAll(); |
| } |
| lock8.wait(); |
| } catch (InterruptedException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| } |
| |
| public void waitState() { |
| synchronized (readyLock) { |
| while (!ready) { |
| try { |
| readyLock.wait(); |
| } catch (InterruptedException e) { |
| log.warn(e); |
| } |
| } |
| } |
| waitThreadState(Thread.State.WAITING); |
| } |
| |
| public void finish() { |
| synchronized (lock8) { |
| lock8.notifyAll(); |
| } |
| } |
| |
| protected boolean isStackTraceElementExpected(StackTraceElement element) { |
| return super.isStackTraceElementExpected(element) || checkStackTraceElement(element, expectedMethodsThread2); |
| } |
| } |
| |
| |
| public void begin() { |
| thread1 = new Thread1(log, recursionType, maxDepth); |
| thread1.begin(); |
| thread2 = new Thread2(log, recursionType, maxDepth); |
| thread2.begin(); |
| } |
| |
| public void waitState() { |
| thread1.waitState(); |
| thread2.waitState(); |
| } |
| |
| public void check(ThreadMXBean threadMXBean) { |
| thread1.check(threadMXBean); |
| thread2.check(threadMXBean); |
| } |
| |
| public void finish() { |
| thread1.finish(); |
| thread2.finish(); |
| } |
| |
| public void end() { |
| thread1.end(); |
| thread1.end(); |
| } |
| |
| public void setLog(Log log) { |
| this.log = log; |
| } |
| } |