Mixing synchronized() with ReentrantLock.lock()
- by yarvin
In Java, do ReentrantLock.lock() and ReetrantLock.unlock() use the same locking mechanism as synchronized()?
My guess is "No," but I'm hoping to be wrong.
Example:
Imagine that Thread 1 and Thread 2 both have access to:
ReentrantLock lock = new ReentrantLock();
Thread 1 runs:
synchronized (lock) {
// blah
}
Thread 2 runs:
lock.lock();
try {
// blah
}
finally {
lock.unlock();
}
Assume Thread 1 reaches its part first, then Thread 2 before Thread 1 is finished: will Thread 2 wait for Thread 1 to leave the synchronized() block, or will it go ahead and run?
