Yes! Finally in JDK 1.4...

[Peter den Haan]

... A facility to find out if you've got a lock on something:

static boolean Thread.holdsLock(Object obj)

This is going to very useful in combination with assertions:

assert Thread.holdsLock(gizmo) : "expected to have a lock on gizmo at this point";

Unfortunately, still no way to check whether another Thread holds a lock on an object
- Peter

[Mr. C Lamont Gilbert]

Its a static function?

[Peter den Haan]

Originally posted by CL Gilbert:
Its a static function?

It is, and it implicitly operates on the current thread. There is no way to see if another thread holds a monitor lock.
- Peter