Locking gone wrong 1

LockTest.java

public class LockTest {

    private static final Logger logger = LoggerFactory.getLogger(LockTest.class);

    public static void main(String[] args) throws InterruptedException {
        ForkJoinPool.commonPool().execute(() -> { mayLock(127);});
        ForkJoinPool.commonPool().execute(() -> { mayLock(127);});
        ForkJoinPool.commonPool().shutdown();
        ForkJoinPool.commonPool().awaitTermination(1, TimeUnit.MINUTES);
    }

    private static void mayLock(Integer arg)  {
        logger.info("entering method {} ",arg);
        synchronized (arg){
            logger.info("entering lock "+Thread.currentThread().getName());
            try {
                Thread.sleep(2000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }
}