this is called after the jvm warmup phase to make sure the data structure is well initalized . no need to do anything for this . concode_field_sep ThreadLocal<Random> s_random concode_elem_sep int range concode_elem_sep ConcurrentHashMap<Integer,Integer> hash concode_field_sep Object getInt concode_elem_sep boolean removeAll concode_elem_sep boolean removeInt concode_elem_sep int size concode_elem_sep boolean addAll concode_elem_sep boolean containsInt concode_elem_sep boolean addInt concode_elem_sep void fill concode_elem_sep Random initialValue concode_elem_sep Object putIfAbsent
void function ( ) { hash . clear ( ) ; return ; }