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

The following examples show how to use java.lang.management.ThreadMXBean#isSynchronizerUsageSupported() . 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: SharedSynchronizer.java    From openjdk-8-source with GNU General Public License v2.0 6 votes vote down vote up 
public static void main(String[] args) throws Exception {
        MyThread t = new MyThread();
        t.setDaemon(true);
        t.start();

        ThreadMXBean tmbean = ManagementFactory.getThreadMXBean();
        if (!tmbean.isSynchronizerUsageSupported()) {
            System.out.println("Monitoring of synchronizer usage not supported")
;
            return;
        }

        long[] result = tmbean.findDeadlockedThreads();
        if (result != null) {
             throw new RuntimeException("TEST FAILED: result should be null");
        }
    }
Example 2
Source File: SharedSynchronizer.java    From jdk8u-dev-jdk with GNU General Public License v2.0 6 votes vote down vote up 
public static void main(String[] args) throws Exception {
        MyThread t = new MyThread();
        t.setDaemon(true);
        t.start();

        ThreadMXBean tmbean = ManagementFactory.getThreadMXBean();
        if (!tmbean.isSynchronizerUsageSupported()) {
            System.out.println("Monitoring of synchronizer usage not supported")
;
            return;
        }

        long[] result = tmbean.findDeadlockedThreads();
        if (result != null) {
             throw new RuntimeException("TEST FAILED: result should be null");
        }
    }
Example 3
Source File: SharedSynchronizer.java    From jdk8u-jdk with GNU General Public License v2.0 6 votes vote down vote up 
public static void main(String[] args) throws Exception {
        MyThread t = new MyThread();
        t.setDaemon(true);
        t.start();

        ThreadMXBean tmbean = ManagementFactory.getThreadMXBean();
        if (!tmbean.isSynchronizerUsageSupported()) {
            System.out.println("Monitoring of synchronizer usage not supported")
;
            return;
        }

        long[] result = tmbean.findDeadlockedThreads();
        if (result != null) {
             throw new RuntimeException("TEST FAILED: result should be null");
        }
    }
Example 4
Source File: SharedSynchronizer.java    From jdk8u_jdk with GNU General Public License v2.0 6 votes vote down vote up 
public static void main(String[] args) throws Exception {
        MyThread t = new MyThread();
        t.setDaemon(true);
        t.start();

        ThreadMXBean tmbean = ManagementFactory.getThreadMXBean();
        if (!tmbean.isSynchronizerUsageSupported()) {
            System.out.println("Monitoring of synchronizer usage not supported")
;
            return;
        }

        long[] result = tmbean.findDeadlockedThreads();
        if (result != null) {
             throw new RuntimeException("TEST FAILED: result should be null");
        }
    }
Example 5
Source File: SharedSynchronizer.java    From openjdk-8 with GNU General Public License v2.0 6 votes vote down vote up 
public static void main(String[] args) throws Exception {
        MyThread t = new MyThread();
        t.setDaemon(true);
        t.start();

        ThreadMXBean tmbean = ManagementFactory.getThreadMXBean();
        if (!tmbean.isSynchronizerUsageSupported()) {
            System.out.println("Monitoring of synchronizer usage not supported")
;
            return;
        }

        long[] result = tmbean.findDeadlockedThreads();
        if (result != null) {
             throw new RuntimeException("TEST FAILED: result should be null");
        }
    }
Example 6
Source File: SharedSynchronizer.java    From dragonwell8_jdk with GNU General Public License v2.0 6 votes vote down vote up 
public static void main(String[] args) throws Exception {
        MyThread t = new MyThread();
        t.setDaemon(true);
        t.start();

        ThreadMXBean tmbean = ManagementFactory.getThreadMXBean();
        if (!tmbean.isSynchronizerUsageSupported()) {
            System.out.println("Monitoring of synchronizer usage not supported")
;
            return;
        }

        long[] result = tmbean.findDeadlockedThreads();
        if (result != null) {
             throw new RuntimeException("TEST FAILED: result should be null");
        }
    }
Example 7
Source File: SharedSynchronizer.java    From hottub with GNU General Public License v2.0 6 votes vote down vote up 
public static void main(String[] args) throws Exception {
        MyThread t = new MyThread();
        t.setDaemon(true);
        t.start();

        ThreadMXBean tmbean = ManagementFactory.getThreadMXBean();
        if (!tmbean.isSynchronizerUsageSupported()) {
            System.out.println("Monitoring of synchronizer usage not supported")
;
            return;
        }

        long[] result = tmbean.findDeadlockedThreads();
        if (result != null) {
             throw new RuntimeException("TEST FAILED: result should be null");
        }
    }
Example 8
Source File: SharedSynchronizer.java    From jdk8u-jdk with GNU General Public License v2.0 6 votes vote down vote up 
public static void main(String[] args) throws Exception {
        MyThread t = new MyThread();
        t.setDaemon(true);
        t.start();

        ThreadMXBean tmbean = ManagementFactory.getThreadMXBean();
        if (!tmbean.isSynchronizerUsageSupported()) {
            System.out.println("Monitoring of synchronizer usage not supported")
;
            return;
        }

        long[] result = tmbean.findDeadlockedThreads();
        if (result != null) {
             throw new RuntimeException("TEST FAILED: result should be null");
        }
    }
Example 9
Source File: SharedSynchronizer.java    From openjdk-jdk9 with GNU General Public License v2.0 6 votes vote down vote up 
public static void main(String[] args) throws Exception {
        MyThread t = new MyThread();
        t.setDaemon(true);
        t.start();

        ThreadMXBean tmbean = ManagementFactory.getThreadMXBean();
        if (!tmbean.isSynchronizerUsageSupported()) {
            System.out.println("Monitoring of synchronizer usage not supported")
;
            return;
        }

        long[] result = tmbean.findDeadlockedThreads();
        if (result != null) {
             throw new RuntimeException("TEST FAILED: result should be null");
        }
    }
Example 10
Source File: SharedSynchronizer.java    From openjdk-jdk8u-backup with GNU General Public License v2.0 6 votes vote down vote up 
public static void main(String[] args) throws Exception {
        MyThread t = new MyThread();
        t.setDaemon(true);
        t.start();

        ThreadMXBean tmbean = ManagementFactory.getThreadMXBean();
        if (!tmbean.isSynchronizerUsageSupported()) {
            System.out.println("Monitoring of synchronizer usage not supported")
;
            return;
        }

        long[] result = tmbean.findDeadlockedThreads();
        if (result != null) {
             throw new RuntimeException("TEST FAILED: result should be null");
        }
    }
Example 11
Source File: SharedSynchronizer.java    From openjdk-jdk8u with GNU General Public License v2.0 6 votes vote down vote up 
public static void main(String[] args) throws Exception {
        MyThread t = new MyThread();
        t.setDaemon(true);
        t.start();

        ThreadMXBean tmbean = ManagementFactory.getThreadMXBean();
        if (!tmbean.isSynchronizerUsageSupported()) {
            System.out.println("Monitoring of synchronizer usage not supported")
;
            return;
        }

        long[] result = tmbean.findDeadlockedThreads();
        if (result != null) {
             throw new RuntimeException("TEST FAILED: result should be null");
        }
    }
Example 12
Source File: SharedSynchronizer.java    From jdk8u60 with GNU General Public License v2.0 6 votes vote down vote up 
public static void main(String[] args) throws Exception {
        MyThread t = new MyThread();
        t.setDaemon(true);
        t.start();

        ThreadMXBean tmbean = ManagementFactory.getThreadMXBean();
        if (!tmbean.isSynchronizerUsageSupported()) {
            System.out.println("Monitoring of synchronizer usage not supported")
;
            return;
        }

        long[] result = tmbean.findDeadlockedThreads();
        if (result != null) {
             throw new RuntimeException("TEST FAILED: result should be null");
        }
    }
Example 13
Source File: SharedSynchronizer.java    From native-obfuscator with GNU General Public License v3.0 6 votes vote down vote up 
public static void main(String[] args) throws Exception {
        MyThread t = new MyThread();
        t.setDaemon(true);
        t.start();

        ThreadMXBean tmbean = ManagementFactory.getThreadMXBean();
        if (!tmbean.isSynchronizerUsageSupported()) {
            System.out.println("Monitoring of synchronizer usage not supported")
;
            return;
        }

        long[] result = tmbean.findDeadlockedThreads();
        if (result != null) {
             throw new RuntimeException("TEST FAILED: result should be null");
        }
    }
Example 14
Source File: SharedSynchronizer.java    From TencentKona-8 with GNU General Public License v2.0 6 votes vote down vote up 
public static void main(String[] args) throws Exception {
        MyThread t = new MyThread();
        t.setDaemon(true);
        t.start();

        ThreadMXBean tmbean = ManagementFactory.getThreadMXBean();
        if (!tmbean.isSynchronizerUsageSupported()) {
            System.out.println("Monitoring of synchronizer usage not supported")
;
            return;
        }

        long[] result = tmbean.findDeadlockedThreads();
        if (result != null) {
             throw new RuntimeException("TEST FAILED: result should be null");
        }
    }
Example 15
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 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: JavaInformations.java    From javamelody with Apache License 2.0 5 votes vote down vote up 
private static long[] getDeadlockedThreads(ThreadMXBean threadBean) {
	final long[] deadlockedThreads;
	if (threadBean.isSynchronizerUsageSupported()) {
		deadlockedThreads = threadBean.findDeadlockedThreads();
	} else {
		deadlockedThreads = threadBean.findMonitorDeadlockedThreads();
	}
	if (deadlockedThreads != null) {
		Arrays.sort(deadlockedThreads);
	}
	return deadlockedThreads;
}
Example 18
Source File: JmxSupport.java    From visualvm with GNU General Public License v2.0 4 votes vote down vote up 
private void print16Thread(final StringBuilder sb, final ThreadMXBean threadMXBean, final ThreadInfo thread) {
    MonitorInfo[] monitors = null;
    if (threadMXBean.isObjectMonitorUsageSupported()) {
        monitors = thread.getLockedMonitors();
    }
    sb.append("\n\"" + thread.getThreadName() + // NOI18N
            "\" - Thread t@" + thread.getThreadId() + "\n");    // NOI18N
    sb.append("   java.lang.Thread.State: " + thread.getThreadState()); // NOI18N
    sb.append("\n");   // NOI18N
    int index = 0;
    for (StackTraceElement st : thread.getStackTrace()) {
        LockInfo lock = thread.getLockInfo();
        String lockOwner = thread.getLockOwnerName();
        
        sb.append("\tat " + st.toString() + "\n");    // NOI18N
        if (index == 0) {
            if ("java.lang.Object".equals(st.getClassName()) &&     // NOI18N
                    "wait".equals(st.getMethodName())) {                // NOI18N
                if (lock != null) {
                    sb.append("\t- waiting on ");    // NOI18N
                    printLock(sb,lock);
                    sb.append("\n");    // NOI18N
                }
            } else if (lock != null) {
                if (lockOwner == null) {
                    sb.append("\t- parking to wait for ");      // NOI18N
                    printLock(sb,lock);
                    sb.append("\n");            // NOI18N
                } else {
                    sb.append("\t- waiting to lock ");      // NOI18N
                    printLock(sb,lock);
                    sb.append(" owned by \""+lockOwner+"\" t@"+thread.getLockOwnerId()+"\n");   // NOI18N
                }
            }
        }
        printMonitors(sb, monitors, index);
        index++;
    }
    StringBuilder jnisb = new StringBuilder();
    printMonitors(jnisb, monitors, -1);
    if (jnisb.length() > 0) {
        sb.append("   JNI locked monitors:\n");
        sb.append(jnisb);
    }
    if (threadMXBean.isSynchronizerUsageSupported()) {
        sb.append("\n   Locked ownable synchronizers:");    // NOI18N
        LockInfo[] synchronizers = thread.getLockedSynchronizers();
        if (synchronizers == null || synchronizers.length == 0) {
            sb.append("\n\t- None\n");  // NOI18N
        } else {
            for (LockInfo li : synchronizers) {
                sb.append("\n\t- locked ");         // NOI18N
                printLock(sb,li);
                sb.append("\n");  // NOI18N
            }
        }
    }
}