question: returns the data at the first element of the queue , or null if the queue is empty . concode_field_sep ZooKeeper zookeeper concode_elem_sep List<ACL> acl concode_elem_sep String prefix concode_elem_sep Logger LOG concode_elem_sep CountDownLatch latch concode_elem_sep String dir concode_field_sep TreeMap<Long,String> orderedChildren concode_elem_sep boolean offer concode_elem_sep byte[] take concode_elem_sep void process concode_elem_sep void await concode_elem_sep String smallestChildName concode_elem_sep byte[] poll concode_elem_sep byte[] remove concode_elem_sep byte[] element
target: byte [ ] function ( ) { try { return element ( ) ; } catch ( NoSuchElementException loc0 ) { return null ; } }