public R get(long timeout, TimeUnit unit) throws InterruptedException,
			ExecutionException, TimeoutException {
		long startTime = System.currentTimeMillis();
		long timeoutMillis = TimeUnit.MILLISECONDS.convert(timeout, unit);
		synchronized (this.sync) {
			for (;;) {
				if (this.isDone) {
					if (this.isCancelled) {
						throw new CancellationException();
					} else if (this.failure != null) {
						throw new ExecutionException(this.failure);
					} else if (this.result != null) {
						return this.result;
					}
				} else if (System.currentTimeMillis() - startTime > timeoutMillis) {
					throw new TimeoutException();
				}

				this.sync.wait(timeoutMillis);
			}
		}
	}
public R get ( long timeout , TimeUnit unit ) throws InterruptedException , ExecutionException , TimeoutException { long startTime = System . currentTimeMillis ( ) ; long timeoutMillis = TimeUnit . MILLISECONDS . convert ( timeout , unit ) ; synchronized ( this . sync ) { for ( ; ; ) { if ( this . isDone ) { if ( this . isCancelled ) { throw new CancellationException ( ) ; } else if ( this . failure != null ) { throw new ExecutionException ( this . failure ) ; } else if ( this . result != null ) { return this . result ; } } else if ( System . currentTimeMillis ( ) - startTime > timeoutMillis ) { throw new TimeoutException ( ) ; } this . sync . wait ( timeoutMillis ) ; } } }
{@inheritDoc}