Waiting on a condition in a reentrant lock

Question

The following code is taken from the JavaDoc of Condition:

class BoundedBuffer {
  final Lock lock = new ReentrantLock();
  final Condition notFull  = lock.newCo         


        

Answer 1

As far as re-entrancy, this means that a thread that holds a certain lock can re-acquire the same lock again. If this wasn't so, a synchronized method would not be able to call another synchronized method of the same object.

Re-entrancy is not involved in the understanding of your problem.