question: clear cache concode_field_sep Node next concode_elem_sep Map<String,Node> cache concode_elem_sep Node head concode_elem_sep Node previous concode_elem_sep Logger LOGGER concode_elem_sep UserAccount userAccount concode_elem_sep Node end concode_elem_sep String userId concode_elem_sep int capacity concode_field_sep boolean contains concode_elem_sep void set concode_elem_sep UserAccount getLruData concode_elem_sep UserAccount get concode_elem_sep void setHead concode_elem_sep List<UserAccount> getCacheDataInListForm concode_elem_sep void invalidate concode_elem_sep boolean isFull concode_elem_sep void setCapacity concode_elem_sep void remove
target: void function ( ) { head = null ; end = null ; cache . clear ( ) ; }