Examples with ThreadInfo java.lang.management.ThreadInfo used on opensource projects

Example 96 with ThreadInfo

use of java.lang.management.ThreadInfo in project jdk8u_jdk by JetBrains.

the class ConnectorStopDeadlockTest method waitForBlock.

//    static MonitorInfo[] threadLocks(Thread t) {
//        ThreadMXBean tm = ManagementFactory.getThreadMXBean();
//        ThreadInfo[] tis = tm.getThreadInfo(new long[] {t.getId()}, true, true);
//        if (tis[0] == null)
//            return null;
//        else
//            return tis[0].getLockedMonitors();
//    }
//
//    static void showLocks(Thread t) {
//        System.out.println("Locks for " + t.getName() + ":");
//        MonitorInfo[] mis = threadLocks(t);
//        if (mis == null)
//            System.out.println("  (no longer exists)");
//        else if (mis.length == 0)
//            System.out.println("  (none)");
//        else {
//            for (MonitorInfo mi : mis)
//                System.out.println("  " + mi);
//        }
//    }
// Wait until thread t blocks waiting for a lock held by the calling thread,
// or until it exits.
static void waitForBlock(Thread t) {
    Thread currentThread = Thread.currentThread();
    System.out.println("waiting for thread " + t.getName() + " to block " + "on a lock held by thread " + currentThread.getName());
    ThreadMXBean tm = ManagementFactory.getThreadMXBean();
    while (true) {
        ThreadInfo ti = tm.getThreadInfo(t.getId());
        if (ti == null) {
            System.out.println("  thread has exited");
            return;
        }
        if (ti.getLockOwnerId() == currentThread.getId()) {
            System.out.println("  thread now blocked");
            return;
        }
        Thread.yield();
    }
}

Example 97 with ThreadInfo

use of java.lang.management.ThreadInfo in project symmetric-ds by JumpMind.

the class MonitorTypeCpu method getNotificationMessage.

protected String getNotificationMessage(long value, long threshold, long period) {
    ThreadInfo[] infos = new ThreadInfo[TOP_THREADS];
    long[] cpuUsages = new long[TOP_THREADS];
    ThreadMXBean threadBean = ManagementFactory.getThreadMXBean();
    for (long threadId : threadBean.getAllThreadIds()) {
        ThreadInfo info = threadBean.getThreadInfo(threadId);
        if (info.getThreadState() != Thread.State.TERMINATED) {
            rankTopUsage(infos, cpuUsages, info, threadBean.getThreadCpuTime(threadId));
        }
    }
    String text = "CPU usage is at " + value;
    for (int i = 0; i < infos.length; i++) {
        text += "Top #" + (i + 1) + " CPU thread " + infos[i].getThreadId() + " is using " + (cpuUsages[i] / 1000000000f) + "s";
        text += logStackTrace(threadBean.getThreadInfo(infos[i].getThreadId(), MAX_STACK_DEPTH));
    }
    return text;
}

Example 98 with ThreadInfo

use of java.lang.management.ThreadInfo in project symmetric-ds by JumpMind.

the class MonitorTypeMemory method getMessage.

public String getMessage(long value, long threshold, long period) {
    long maxMemory = tenuredPool.getUsage().getMax();
    long usedMemory = tenuredPool.getUsage().getUsed();
    String text = "Memory threshold exceeded, " + usedMemory + " of " + maxMemory;
    ThreadInfo[] infos = new ThreadInfo[TOP_THREADS];
    long[] byteUsages = new long[TOP_THREADS];
    ThreadMXBean threadBean = ManagementFactory.getThreadMXBean();
    for (long threadId : threadBean.getAllThreadIds()) {
        ThreadInfo info = threadBean.getThreadInfo(threadId);
        if (info.getThreadState() != Thread.State.TERMINATED) {
            rankTopUsage(infos, byteUsages, info, getThreadAllocatedBytes(threadBean, threadId));
        }
    }
    for (int i = 0; i < infos.length; i++) {
        text += "Top #" + (i + 1) + " memory thread " + infos[i].getThreadId() + " is using " + String.format("%.1f", ((double) byteUsages[i] / 1048576f)) + "MB";
        text += logStackTrace(threadBean.getThreadInfo(infos[i].getThreadId(), MAX_STACK_DEPTH));
    }
    return text;
}

Example 99 with ThreadInfo

use of java.lang.management.ThreadInfo in project symmetric-ds by JumpMind.

the class ProcessInfo method getThreadData.

public static ThreadData getThreadData(long threadId) {
    ThreadMXBean threadBean = ManagementFactory.getThreadMXBean();
    ThreadInfo info = threadBean.getThreadInfo(threadId, 100);
    if (info != null) {
        String threadName = info.getThreadName();
        return new ThreadData(threadName, AppUtils.formatStackTrace(info.getStackTrace()));
    } else {
        return null;
    }
}

Example 100 with ThreadInfo

use of java.lang.management.ThreadInfo in project indy by Commonjava.

the class DiagnosticsManager method getThreadDumpString.

public String getThreadDumpString() {
    StringBuilder sb = new StringBuilder();
    ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
    ThreadInfo[] threadInfos = threadMXBean.getThreadInfo(threadMXBean.getAllThreadIds(), 100);
    Stream.of(threadInfos).forEachOrdered((ti) -> {
        if (sb.length() > 0) {
            sb.append("\n\n");
        }
        sb.append(ti.getThreadName()).append("\n  State: ").append(ti.getThreadState()).append("\n  Lock Info: ").append(ti.getLockInfo()).append("\n  Monitors:");
        MonitorInfo[] monitors = ti.getLockedMonitors();
        if (monitors == null || monitors.length < 1) {
            sb.append("  -NONE-");
        } else {
            sb.append("\n  - ").append(join(monitors, "\n  - "));
        }
        sb.append("\n  Trace:\n    ").append(join(ti.getStackTrace(), "\n    "));
    });
    return sb.toString();
}