Class ThreadMonitor

  extended by java.lang.Thread
      extended by jgroup.util.ThreadMonitor
All Implemented Interfaces:

public class ThreadMonitor
extends java.lang.Thread

Monitor threads to detect thread failures, and perform corrective action in case some thread has crashed.

This class is helpful with respect to debugging deadlock problems, especially when DUMP_ALL_THREADS is set to true. This will, at regular intervals, dump the stack trace of all threads allowing the developer to identify threads that might have entered into a deadlock situation awaiting a lock being held by another thread.

This class requires JDK 5.0, but is not mandatory for general use of Jgroup/ARM, and as such use of this class may be disabled.

Jgroup 2.1
Hein Meling

Nested Class Summary
Nested classes/interfaces inherited from class java.lang.Thread
java.lang.Thread.State, java.lang.Thread.UncaughtExceptionHandler
Field Summary
Fields inherited from class java.lang.Thread
Method Summary
static void add(java.lang.Thread thread)
          Add the given thread to the monitor.
static void dumpAllThreads()
static void remove(java.lang.Thread thread)
          Remove the given thread from being monitored.
 void run()
Methods inherited from class java.lang.Thread
activeCount, checkAccess, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Method Detail


public static void add(java.lang.Thread thread)
Add the given thread to the monitor.


public static void remove(java.lang.Thread thread)
Remove the given thread from being monitored.


public static void dumpAllThreads()


public void run()
Specified by:
run in interface java.lang.Runnable
run in class java.lang.Thread

Copyright © 1998-2006 The Jgroup/ARM development team. All Rights Reserved.