Java Code Examples for java.lang.management.ThreadMXBean#findMonitorDeadlockedThreads()

The following examples show how to use java.lang.management.ThreadMXBean#findMonitorDeadlockedThreads() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: ThreadDeadlockDumpProvider.java    From TNT4J with Apache License 2.0 6 votes vote down vote up 
@Override
public DumpCollection getDump() {
	Dump dump = new Dump("JavaDeadlockedThreads", this);
	ThreadMXBean tmbean = ManagementFactory.getThreadMXBean();

	long[] dead = tmbean.findMonitorDeadlockedThreads();
	dump.add("java.thread.deadlock.count", dead == null ? 0 : dead.length);

	if (dead != null) {
		ThreadInfo[] tinfos = tmbean.getThreadInfo(dead, Integer.MAX_VALUE);
		for (ThreadInfo ti : tinfos) {
			dump.add(ti.getThreadName() + "-" + ti.getThreadId(), ti);
		}
	}
	return dump;
}
Example 2
Source File: ThreadDumpUtil.java    From pulsar with Apache License 2.0 6 votes vote down vote up 
static String buildDeadlockInfo() {
    ThreadMXBean threadBean = ManagementFactory.getThreadMXBean();
    long[] threadIds = threadBean.findMonitorDeadlockedThreads();
    if (threadIds != null && threadIds.length > 0) {
        StringWriter stringWriter = new StringWriter();
        PrintWriter out = new PrintWriter(stringWriter);

        ThreadInfo[] infos = threadBean.getThreadInfo(threadIds, true, true);
        for (ThreadInfo ti : infos) {
            printThreadInfo(ti, out);
            printLockInfo(ti.getLockedSynchronizers(), out);
            out.println();
        }

        out.close();
        return stringWriter.toString();
    } else {
        return null;
    }
}
Example 3
Source File: TimedOutTestsListener.java    From distributedlog with Apache License 2.0 6 votes vote down vote up 
static String buildDeadlockInfo() {
    ThreadMXBean threadBean = ManagementFactory.getThreadMXBean();
    long[] threadIds = threadBean.findMonitorDeadlockedThreads();
    if (threadIds != null && threadIds.length > 0) {
        StringWriter stringWriter = new StringWriter();
        PrintWriter out = new PrintWriter(stringWriter);

        ThreadInfo[] infos = threadBean.getThreadInfo(threadIds, true, true);
        for (ThreadInfo ti : infos) {
            printThreadInfo(ti, out);
            printLockInfo(ti.getLockedSynchronizers(), out);
            out.println();
        }

        out.close();
        return stringWriter.toString();
    } else {
        return null;
    }
}
Example 4
Source File: TimedOutTestsListener.java    From big-c with Apache License 2.0 6 votes vote down vote up 
static String buildDeadlockInfo() {
  ThreadMXBean threadBean = ManagementFactory.getThreadMXBean();
  long[] threadIds = threadBean.findMonitorDeadlockedThreads();
  if (threadIds != null && threadIds.length > 0) {
    StringWriter stringWriter = new StringWriter();
    PrintWriter out = new PrintWriter(stringWriter);
    
    ThreadInfo[] infos = threadBean.getThreadInfo(threadIds, true, true);
    for (ThreadInfo ti : infos) {
      printThreadInfo(ti, out);
      printLockInfo(ti.getLockedSynchronizers(), out);
      out.println();
    }
    
    out.close();
    return stringWriter.toString();
  } else {
    return null;
  }
}
Example 5
Source File: TimedOutTestsListener.java    From hbase with Apache License 2.0 6 votes vote down vote up 
static String buildDeadlockInfo() {
  ThreadMXBean threadBean = ManagementFactory.getThreadMXBean();
  long[] threadIds = threadBean.findMonitorDeadlockedThreads();
  if (threadIds != null && threadIds.length > 0) {
    StringWriter stringWriter = new StringWriter();
    PrintWriter out = new PrintWriter(stringWriter);

    ThreadInfo[] infos = threadBean.getThreadInfo(threadIds, true, true);
    for (ThreadInfo ti : infos) {
      printThreadInfo(ti, out);
      printLockInfo(ti.getLockedSynchronizers(), out);
      out.println();
    }

    out.close();
    return stringWriter.toString();
  } else {
    return null;
  }
}
Example 6
Source File: JVMMonitor.java    From fqueue with Apache License 2.0 5 votes vote down vote up 
/**
 * 获取死锁数
 * 
 * @return 死锁数
 */
public static int getDeadLockCount() {
    ThreadMXBean th = (ThreadMXBean) ManagementFactory.getThreadMXBean();
    long[] deadLockIds = th.findMonitorDeadlockedThreads();
    if (deadLockIds == null) {
        return 0;
    } else {
        return deadLockIds.length;
    }

}
Example 7
Source File: JVMMonitor.java    From fqueue with Apache License 2.0 5 votes vote down vote up 
/**
 * 获取死锁数
 * 
 * @return 死锁数
 */
public static int getDeadLockCount() {
    ThreadMXBean th = (ThreadMXBean) ManagementFactory.getThreadMXBean();
    long[] deadLockIds = th.findMonitorDeadlockedThreads();
    if (deadLockIds == null) {
        return 0;
    } else {
        return deadLockIds.length;
    }

}
Example 8
Source File: ProxyClient.java    From jmxmon with Apache License 2.0 5 votes vote down vote up 
public long[] findDeadlockedThreads() throws IOException {
    ThreadMXBean tm = getThreadMXBean();
    if (supportsLockUsage && tm.isSynchronizerUsageSupported()) {
        return tm.findDeadlockedThreads();
    } else {
        return tm.findMonitorDeadlockedThreads();
    }
}
Example 9
Source File: AnnotationTypeDeadlockTest.java    From jdk8u_jdk with GNU General Public License v2.0 5 votes vote down vote up 
public static void main(String[] args) throws Exception {
    CountDownLatch prepareLatch = new CountDownLatch(2);
    AtomicInteger goLatch = new AtomicInteger(1);
    Task taskA = new Task(prepareLatch, goLatch, AnnA.class);
    Task taskB = new Task(prepareLatch, goLatch, AnnB.class);
    taskA.start();
    taskB.start();
    // wait until both threads start-up
    prepareLatch.await();
    // let them go
    goLatch.set(0);
    // obtain ThreadMXBean
    ThreadMXBean threadBean = ManagementFactory.getThreadMXBean();
    // wait for threads to finish or dead-lock
    while (taskA.isAlive() || taskB.isAlive()) {
        // attempt to join threads
        taskA.join(500L);
        taskB.join(500L);
        // detect dead-lock
        long[] deadlockedIds = threadBean.findMonitorDeadlockedThreads();
        if (deadlockedIds != null && deadlockedIds.length > 0) {
            StringBuilder sb = new StringBuilder("deadlock detected:\n\n");
            for (ThreadInfo ti : threadBean.getThreadInfo(deadlockedIds, Integer.MAX_VALUE)) {
                sb.append(ti);
            }
            throw new IllegalStateException(sb.toString());
        }
    }
}
Example 10
Source File: AnnotationTypeDeadlockTest.java    From openjdk-8 with GNU General Public License v2.0 5 votes vote down vote up 
public static void main(String[] args) throws Exception {
    CountDownLatch prepareLatch = new CountDownLatch(2);
    AtomicInteger goLatch = new AtomicInteger(1);
    Task taskA = new Task(prepareLatch, goLatch, AnnA.class);
    Task taskB = new Task(prepareLatch, goLatch, AnnB.class);
    taskA.start();
    taskB.start();
    // wait until both threads start-up
    prepareLatch.await();
    // let them go
    goLatch.set(0);
    // obtain ThreadMXBean
    ThreadMXBean threadBean = ManagementFactory.getThreadMXBean();
    // wait for threads to finish or dead-lock
    while (taskA.isAlive() || taskB.isAlive()) {
        // attempt to join threads
        taskA.join(500L);
        taskB.join(500L);
        // detect dead-lock
        long[] deadlockedIds = threadBean.findMonitorDeadlockedThreads();
        if (deadlockedIds != null && deadlockedIds.length > 0) {
            StringBuilder sb = new StringBuilder("deadlock detected:\n\n");
            for (ThreadInfo ti : threadBean.getThreadInfo(deadlockedIds, Integer.MAX_VALUE)) {
                sb.append(ti);
            }
            throw new IllegalStateException(sb.toString());
        }
    }
}
Example 11
Source File: AnnotationTypeDeadlockTest.java    From openjdk-8-source with GNU General Public License v2.0 5 votes vote down vote up 
public static void main(String[] args) throws Exception {
    CountDownLatch prepareLatch = new CountDownLatch(2);
    AtomicInteger goLatch = new AtomicInteger(1);
    Task taskA = new Task(prepareLatch, goLatch, AnnA.class);
    Task taskB = new Task(prepareLatch, goLatch, AnnB.class);
    taskA.start();
    taskB.start();
    // wait until both threads start-up
    prepareLatch.await();
    // let them go
    goLatch.set(0);
    // obtain ThreadMXBean
    ThreadMXBean threadBean = ManagementFactory.getThreadMXBean();
    // wait for threads to finish or dead-lock
    while (taskA.isAlive() || taskB.isAlive()) {
        // attempt to join threads
        taskA.join(500L);
        taskB.join(500L);
        // detect dead-lock
        long[] deadlockedIds = threadBean.findMonitorDeadlockedThreads();
        if (deadlockedIds != null && deadlockedIds.length > 0) {
            StringBuilder sb = new StringBuilder("deadlock detected:\n\n");
            for (ThreadInfo ti : threadBean.getThreadInfo(deadlockedIds, Integer.MAX_VALUE)) {
                sb.append(ti);
            }
            throw new IllegalStateException(sb.toString());
        }
    }
}
Example 12
Source File: AnnotationTypeDeadlockTest.java    From jdk8u-jdk with GNU General Public License v2.0 5 votes vote down vote up 
public static void main(String[] args) throws Exception {
    CountDownLatch prepareLatch = new CountDownLatch(2);
    AtomicInteger goLatch = new AtomicInteger(1);
    Task taskA = new Task(prepareLatch, goLatch, AnnA.class);
    Task taskB = new Task(prepareLatch, goLatch, AnnB.class);
    taskA.start();
    taskB.start();
    // wait until both threads start-up
    prepareLatch.await();
    // let them go
    goLatch.set(0);
    // obtain ThreadMXBean
    ThreadMXBean threadBean = ManagementFactory.getThreadMXBean();
    // wait for threads to finish or dead-lock
    while (taskA.isAlive() || taskB.isAlive()) {
        // attempt to join threads
        taskA.join(500L);
        taskB.join(500L);
        // detect dead-lock
        long[] deadlockedIds = threadBean.findMonitorDeadlockedThreads();
        if (deadlockedIds != null && deadlockedIds.length > 0) {
            StringBuilder sb = new StringBuilder("deadlock detected:\n\n");
            for (ThreadInfo ti : threadBean.getThreadInfo(deadlockedIds, Integer.MAX_VALUE)) {
                sb.append(ti);
            }
            throw new IllegalStateException(sb.toString());
        }
    }
}
Example 13
Source File: AnnotationTypeDeadlockTest.java    From jdk8u-dev-jdk with GNU General Public License v2.0 5 votes vote down vote up 
public static void main(String[] args) throws Exception {
    CountDownLatch prepareLatch = new CountDownLatch(2);
    AtomicInteger goLatch = new AtomicInteger(1);
    Task taskA = new Task(prepareLatch, goLatch, AnnA.class);
    Task taskB = new Task(prepareLatch, goLatch, AnnB.class);
    taskA.start();
    taskB.start();
    // wait until both threads start-up
    prepareLatch.await();
    // let them go
    goLatch.set(0);
    // obtain ThreadMXBean
    ThreadMXBean threadBean = ManagementFactory.getThreadMXBean();
    // wait for threads to finish or dead-lock
    while (taskA.isAlive() || taskB.isAlive()) {
        // attempt to join threads
        taskA.join(500L);
        taskB.join(500L);
        // detect dead-lock
        long[] deadlockedIds = threadBean.findMonitorDeadlockedThreads();
        if (deadlockedIds != null && deadlockedIds.length > 0) {
            StringBuilder sb = new StringBuilder("deadlock detected:\n\n");
            for (ThreadInfo ti : threadBean.getThreadInfo(deadlockedIds, Integer.MAX_VALUE)) {
                sb.append(ti);
            }
            throw new IllegalStateException(sb.toString());
        }
    }
}
Example 14
Source File: AnnotationTypeDeadlockTest.java    From openjdk-jdk9 with GNU General Public License v2.0 5 votes vote down vote up 
public static void main(String[] args) throws Exception {
    CountDownLatch prepareLatch = new CountDownLatch(2);
    AtomicInteger goLatch = new AtomicInteger(1);
    Task taskA = new Task(prepareLatch, goLatch, AnnA.class);
    Task taskB = new Task(prepareLatch, goLatch, AnnB.class);
    taskA.start();
    taskB.start();
    // wait until both threads start-up
    prepareLatch.await();
    // let them go
    goLatch.set(0);
    // obtain ThreadMXBean
    ThreadMXBean threadBean = ManagementFactory.getThreadMXBean();
    // wait for threads to finish or dead-lock
    while (taskA.isAlive() || taskB.isAlive()) {
        // attempt to join threads
        taskA.join(500L);
        taskB.join(500L);
        // detect dead-lock
        long[] deadlockedIds = threadBean.findMonitorDeadlockedThreads();
        if (deadlockedIds != null && deadlockedIds.length > 0) {
            StringBuilder sb = new StringBuilder("deadlock detected:\n\n");
            for (ThreadInfo ti : threadBean.getThreadInfo(deadlockedIds, Integer.MAX_VALUE)) {
                sb.append(ti);
            }
            throw new IllegalStateException(sb.toString());
        }
    }
}
Example 15
Source File: AnnotationTypeDeadlockTest.java    From openjdk-jdk8u-backup with GNU General Public License v2.0 5 votes vote down vote up 
public static void main(String[] args) throws Exception {
    CountDownLatch prepareLatch = new CountDownLatch(2);
    AtomicInteger goLatch = new AtomicInteger(1);
    Task taskA = new Task(prepareLatch, goLatch, AnnA.class);
    Task taskB = new Task(prepareLatch, goLatch, AnnB.class);
    taskA.start();
    taskB.start();
    // wait until both threads start-up
    prepareLatch.await();
    // let them go
    goLatch.set(0);
    // obtain ThreadMXBean
    ThreadMXBean threadBean = ManagementFactory.getThreadMXBean();
    // wait for threads to finish or dead-lock
    while (taskA.isAlive() || taskB.isAlive()) {
        // attempt to join threads
        taskA.join(500L);
        taskB.join(500L);
        // detect dead-lock
        long[] deadlockedIds = threadBean.findMonitorDeadlockedThreads();
        if (deadlockedIds != null && deadlockedIds.length > 0) {
            StringBuilder sb = new StringBuilder("deadlock detected:\n\n");
            for (ThreadInfo ti : threadBean.getThreadInfo(deadlockedIds, Integer.MAX_VALUE)) {
                sb.append(ti);
            }
            throw new IllegalStateException(sb.toString());
        }
    }
}
Example 16
Source File: ProxyClient.java    From jvmtop with GNU General Public License v2.0 5 votes vote down vote up 
public long[] findDeadlockedThreads() throws IOException {
    ThreadMXBean tm = getThreadMXBean();
    if (supportsLockUsage && tm.isSynchronizerUsageSupported()) {
        return tm.findDeadlockedThreads();
    } else {
        return tm.findMonitorDeadlockedThreads();
    }
}
Example 17
Source File: AnnotationTypeDeadlockTest.java    From jdk8u60 with GNU General Public License v2.0 5 votes vote down vote up 
public static void main(String[] args) throws Exception {
    CountDownLatch prepareLatch = new CountDownLatch(2);
    AtomicInteger goLatch = new AtomicInteger(1);
    Task taskA = new Task(prepareLatch, goLatch, AnnA.class);
    Task taskB = new Task(prepareLatch, goLatch, AnnB.class);
    taskA.start();
    taskB.start();
    // wait until both threads start-up
    prepareLatch.await();
    // let them go
    goLatch.set(0);
    // obtain ThreadMXBean
    ThreadMXBean threadBean = ManagementFactory.getThreadMXBean();
    // wait for threads to finish or dead-lock
    while (taskA.isAlive() || taskB.isAlive()) {
        // attempt to join threads
        taskA.join(500L);
        taskB.join(500L);
        // detect dead-lock
        long[] deadlockedIds = threadBean.findMonitorDeadlockedThreads();
        if (deadlockedIds != null && deadlockedIds.length > 0) {
            StringBuilder sb = new StringBuilder("deadlock detected:\n\n");
            for (ThreadInfo ti : threadBean.getThreadInfo(deadlockedIds, Integer.MAX_VALUE)) {
                sb.append(ti);
            }
            throw new IllegalStateException(sb.toString());
        }
    }
}
Example 18
Source File: AnnotationTypeDeadlockTest.java    From jdk8u-jdk with GNU General Public License v2.0 5 votes vote down vote up 
public static void main(String[] args) throws Exception {
    CountDownLatch prepareLatch = new CountDownLatch(2);
    AtomicInteger goLatch = new AtomicInteger(1);
    Task taskA = new Task(prepareLatch, goLatch, AnnA.class);
    Task taskB = new Task(prepareLatch, goLatch, AnnB.class);
    taskA.start();
    taskB.start();
    // wait until both threads start-up
    prepareLatch.await();
    // let them go
    goLatch.set(0);
    // obtain ThreadMXBean
    ThreadMXBean threadBean = ManagementFactory.getThreadMXBean();
    // wait for threads to finish or dead-lock
    while (taskA.isAlive() || taskB.isAlive()) {
        // attempt to join threads
        taskA.join(500L);
        taskB.join(500L);
        // detect dead-lock
        long[] deadlockedIds = threadBean.findMonitorDeadlockedThreads();
        if (deadlockedIds != null && deadlockedIds.length > 0) {
            StringBuilder sb = new StringBuilder("deadlock detected:\n\n");
            for (ThreadInfo ti : threadBean.getThreadInfo(deadlockedIds, Integer.MAX_VALUE)) {
                sb.append(ti);
            }
            throw new IllegalStateException(sb.toString());
        }
    }
}
Example 19
Source File: AnnotationTypeDeadlockTest.java    From TencentKona-8 with GNU General Public License v2.0 5 votes vote down vote up 
public static void main(String[] args) throws Exception {
    CountDownLatch prepareLatch = new CountDownLatch(2);
    AtomicInteger goLatch = new AtomicInteger(1);
    Task taskA = new Task(prepareLatch, goLatch, AnnA.class);
    Task taskB = new Task(prepareLatch, goLatch, AnnB.class);
    taskA.start();
    taskB.start();
    // wait until both threads start-up
    prepareLatch.await();
    // let them go
    goLatch.set(0);
    // obtain ThreadMXBean
    ThreadMXBean threadBean = ManagementFactory.getThreadMXBean();
    // wait for threads to finish or dead-lock
    while (taskA.isAlive() || taskB.isAlive()) {
        // attempt to join threads
        taskA.join(500L);
        taskB.join(500L);
        // detect dead-lock
        long[] deadlockedIds = threadBean.findMonitorDeadlockedThreads();
        if (deadlockedIds != null && deadlockedIds.length > 0) {
            StringBuilder sb = new StringBuilder("deadlock detected:\n\n");
            for (ThreadInfo ti : threadBean.getThreadInfo(deadlockedIds, Integer.MAX_VALUE)) {
                sb.append(ti);
            }
            throw new IllegalStateException(sb.toString());
        }
    }
}
Example 20
Source File: AnnotationTypeDeadlockTest.java    From dragonwell8_jdk with GNU General Public License v2.0 5 votes vote down vote up 
public static void main(String[] args) throws Exception {
    CountDownLatch prepareLatch = new CountDownLatch(2);
    AtomicInteger goLatch = new AtomicInteger(1);
    Task taskA = new Task(prepareLatch, goLatch, AnnA.class);
    Task taskB = new Task(prepareLatch, goLatch, AnnB.class);
    taskA.start();
    taskB.start();
    // wait until both threads start-up
    prepareLatch.await();
    // let them go
    goLatch.set(0);
    // obtain ThreadMXBean
    ThreadMXBean threadBean = ManagementFactory.getThreadMXBean();
    // wait for threads to finish or dead-lock
    while (taskA.isAlive() || taskB.isAlive()) {
        // attempt to join threads
        taskA.join(500L);
        taskB.join(500L);
        // detect dead-lock
        long[] deadlockedIds = threadBean.findMonitorDeadlockedThreads();
        if (deadlockedIds != null && deadlockedIds.length > 0) {
            StringBuilder sb = new StringBuilder("deadlock detected:\n\n");
            for (ThreadInfo ti : threadBean.getThreadInfo(deadlockedIds, Integer.MAX_VALUE)) {
                sb.append(ti);
            }
            throw new IllegalStateException(sb.toString());
        }
    }
}