@Override
      public Boolean get(long duration, TimeUnit units)
        throws InterruptedException, TimeoutException, ExecutionException {
        status = new OperationStatus(true, "OK", StatusCode.SUCCESS);
        return super.get(duration, units);
      }
Flush all caches from all servers with a delay of application.

@param delay the period of time to delay, in seconds
@return whether or not the operation was accepted
@throws IllegalStateException in the rare circumstance where queue is too
          full to accept any more requests
src/main/java/net/spy/memcached/MemcachedClient.java