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Computing with Data

elgeish
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Reentrant Locks - Part III

That doesn't mean that reentrant locks are safer than non-reentrant ones:

import java.util.concurrent.locks.ReentrantLock;
class NonReentrantLockExample {
private final ReentrantLock lock = new ReentrantLock();
public void foo() throws InterruptedException {
assert !lock.isHeldByCurrentThread() :
"lock is held by current thread";
lock.lock();
try {
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