Obtaining monitor lock of a blocked thread

Question

Is there a way to obtain the monitor lock (reference to the object) of a blocked thread? Something like Object Thread.getMonitorLockedObject()Also when you get the locked object it would be useful if you can get reference to the thread which is holding it, e.g.
Thread Object.getLockingThread() although the latter could be achieved through iterating over all threads and calling boolean Thread.holdsLock(Object)Such methods would help very much in debugging deadlocks and other concurrency problems.

Answer 1

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Is there a way to obtain the monitor lock (reference
to the object) of a blocked thread? Something like
Object Thread.getMonitorLockedObject()
Not that I'm aware of, and a quick glance through the APi didn't look promising.
Also when you get the locked object it would be
useful if you can get reference to the thread which
is holding it, e.g.
Thread Object.getLockingThread()although the latter could be achieved through
iterating over all threads and calling boolean
Thread.holdsLock(Object)
Again, no. And your work-around wouldn't work, since the holdsLock method is static and can only be called for the current thread.
Such methods would help very much in debugging
deadlocks and other concurrency problems.There already are some useful methods for that in the Thread class, e.g. getState() and getAllStackTraces().
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