jtulach@111: package org.apidesign.reentrant;
jtulach@111: 
jtulach@111: import java.util.concurrent.locks.ReentrantLock;
jtulach@111: 
jtulach@111: final class NonReentrantLock extends ReentrantLock {
jtulach@111:     @Override
jtulach@111:     public void lock() {
jtulach@111:         if (isHeldByCurrentThread()) {
jtulach@111:             throw new IllegalStateException("Attempt to reentrant lock");
jtulach@111:         }
jtulach@111:         super.lock();
jtulach@111:     }
jtulach@111: 
jtulach@111:     @Override
jtulach@111:     public void lockInterruptibly() throws InterruptedException {
jtulach@111:         if (isHeldByCurrentThread()) {
jtulach@111:             throw new IllegalStateException("Attempt to reentrant lock");
jtulach@111:         }
jtulach@111:         super.lockInterruptibly();
jtulach@111:     }
jtulach@111:     
jtulach@111: }