jme: sync-juc -> com.jme.util.GameTask

antes

    public synchronized V get(long timeout, TimeUnit unit) throws InterruptedException, ExecutionException, TimeoutException {
        if ((result == null) && (exc == null)) {
            unit.timedWait(this, timeout);
        }
        if (exc != null) throw exc;
        if (result == null) throw new TimeoutException("Object not returned in time allocated.");
        return result;
    }

depois

    public V get() throws InterruptedException, ExecutionException {
    	stateLock.lock();
    	try {
    		while (!isDone()) {
    			finishedCondition.await();
    		}
    		if (exception != null) {
    			throw exception;
    		}
    		return result;
    	} finally {
    		stateLock.unlock();
    	}
    }