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

Example 71 with ThreadMXBean

use of java.lang.management.ThreadMXBean in project hadoop by apache.

the class TestRpcBase method countThreads.

/**
   * Count the number of threads that have a stack frame containing
   * the given string
   */
protected static int countThreads(String search) {
    ThreadMXBean threadBean = ManagementFactory.getThreadMXBean();
    int count = 0;
    ThreadInfo[] infos = threadBean.getThreadInfo(threadBean.getAllThreadIds(), 20);
    for (ThreadInfo info : infos) {
        if (info == null)
            continue;
        for (StackTraceElement elem : info.getStackTrace()) {
            if (elem.getClassName().contains(search)) {
                count++;
                break;
            }
        }
    }
    return count;
}

Example 72 with ThreadMXBean

use of java.lang.management.ThreadMXBean in project hadoop by apache.

the class TestShell method countTimerThreads.

private static int countTimerThreads() {
    ThreadMXBean threadBean = ManagementFactory.getThreadMXBean();
    int count = 0;
    ThreadInfo[] infos = threadBean.getThreadInfo(threadBean.getAllThreadIds(), 20);
    for (ThreadInfo info : infos) {
        if (info == null)
            continue;
        for (StackTraceElement elem : info.getStackTrace()) {
            if (elem.getClassName().contains("Timer")) {
                count++;
                break;
            }
        }
    }
    return count;
}

Example 73 with ThreadMXBean

use of java.lang.management.ThreadMXBean in project pinpoint by naver.

the class ReconnectTest method reconnectStressTest.

// it takes very long time. 
// @Test
@Ignore
public void reconnectStressTest() throws IOException, InterruptedException {
    int count = 3;
    ThreadMXBean tbean = ManagementFactory.getThreadMXBean();
    int threadCount = tbean.getThreadCount();
    for (int i = 0; i < count; i++) {
        logger.debug((i + 1) + "th's start.");
        PinpointServerAcceptor serverAcceptor = PinpointRPCTestUtils.createPinpointServerFactory(bindPort, SimpleServerMessageListener.DUPLEX_ECHO_INSTANCE);
        PinpointClient client = clientFactory.connect("localhost", bindPort);
        PinpointRPCTestUtils.close(serverAcceptor);
        logger.debug("server.close");
        assertClientDisconnected(client);
        serverAcceptor = PinpointRPCTestUtils.createPinpointServerFactory(bindPort, SimpleServerMessageListener.DUPLEX_ECHO_INSTANCE);
        logger.debug("bind server");
        assertClientConnected(client);
        logger.debug("request server");
        byte[] randomByte = TestByteUtils.createRandomByte(10);
        byte[] response = PinpointRPCTestUtils.request(client, randomByte);
        Assert.assertArrayEquals(randomByte, response);
        PinpointRPCTestUtils.close(client);
        PinpointRPCTestUtils.close(serverAcceptor);
    }
    Thread.sleep(10000);
    Assert.assertEquals(threadCount, tbean.getThreadCount());
}

Example 74 with ThreadMXBean

use of java.lang.management.ThreadMXBean in project gerrit by GerritCodeReview.

the class StartStopDaemonIT method sandboxedDaemonDoesNotLeakThreads.

@Test
public void sandboxedDaemonDoesNotLeakThreads() throws Exception {
    ThreadMXBean thbean = ManagementFactory.getThreadMXBean();
    int startThreads = thbean.getThreadCount();
    beforeTest(suiteDescription);
    afterTest();
    assertThat(Thread.activeCount()).isLessThan(startThreads);
}

Example 75 with ThreadMXBean

use of java.lang.management.ThreadMXBean in project geode by apache.

the class DeadlockDetector method getThreadReference.

/**
   * Get an object suitable for querying the findDependencies method for a given thread.
   */
public static ThreadReference getThreadReference(String locality, Thread thread) {
    ThreadMXBean bean = ManagementFactory.getThreadMXBean();
    ThreadInfo info = bean.getThreadInfo(thread.getId(), Integer.MAX_VALUE);
    return new LocalThread(locality, info);
}