Example #1
0
  public static void main(String[] argv) throws Exception {
    mbean = newPlatformMXBeanProxy(server, THREAD_MXBEAN_NAME, ThreadMXBean.class);

    if (!mbean.isSynchronizerUsageSupported()) {
      System.out.println("Monitoring of synchronizer usage not supported");
      return;
    }

    thread.setDaemon(true);
    thread.start();

    // wait until myThread acquires mutex and lock owner is set.
    while (!(mutex.isLocked() && mutex.getLockOwner() == thread)) {
      try {
        Thread.sleep(100);
      } catch (InterruptedException e) {
        throw new RuntimeException(e);
      }
    }

    long[] ids = new long[] {thread.getId()};

    // validate the local access
    ThreadInfo[] infos = getThreadMXBean().getThreadInfo(ids, true, true);
    if (infos.length != 1) {
      throw new RuntimeException(
          "Returned ThreadInfo[] of length=" + infos.length + ". Expected to be 1.");
    }
    thread.checkThreadInfo(infos[0]);

    // validate the remote access
    infos = mbean.getThreadInfo(ids, true, true);
    if (infos.length != 1) {
      throw new RuntimeException(
          "Returned ThreadInfo[] of length=" + infos.length + ". Expected to be 1.");
    }
    thread.checkThreadInfo(infos[0]);

    boolean found = false;
    infos = mbean.dumpAllThreads(true, true);
    for (ThreadInfo ti : infos) {
      if (ti.getThreadId() == thread.getId()) {
        thread.checkThreadInfo(ti);
        found = true;
      }
    }

    if (!found) {
      throw new RuntimeException("No ThreadInfo found for MyThread");
    }

    System.out.println("Test passed");
  }
Example #2
0
  private static void printThreadInfo(CompositeData cd) {
    ThreadInfo info = ThreadInfo.from(cd);
    if (info == null) {
      throw new RuntimeException("TEST FAILED: " + " Null ThreadInfo");
    }

    System.out.print(info.getThreadName());
    System.out.print(" id=" + info.getThreadId());
    System.out.println(" " + info.getThreadState());

    for (StackTraceElement s : info.getStackTrace()) {
      System.out.println(s);
    }
  }