static final ThreadGroup GROUP = new ThreadGroup(THREADGROUP_NAME);

        static final AtomicInteger THREAD_NUMBER = new AtomicInteger(1);

        public Thread newThread(Runnable r) {
            Thread newThread = new Thread(GROUP, r, "resolver-" + THREAD_NUMBER.getAndIncrement());
            newThread.setDaemon(true);
            newThread.setContextClassLoader(null);
            return newThread;