Java list of waiting threads

Question

Is there a way to get a list of waiting threads/number of waiting threads on an object?

Answer 1

If you are on JDk 1.6 then ManagementFactory.getThreadMXBean() is the best way to find out about all the threads waiting on object For JDK before 1.6 you can use thread group to find out all the threads and then inspect thread stack to find out about object on which they are waiting.