question: returns true if this protocol has been closed concode_field_sep ZooKeeper zookeeper concode_elem_sep Logger LOG concode_elem_sep List<ACL> acl concode_elem_sep AtomicBoolean closed concode_elem_sep long retryDelay concode_elem_sep int retryCount concode_field_sep Object retryOperation concode_elem_sep void retryDelay concode_elem_sep void doClose concode_elem_sep ZooKeeper getZookeeper concode_elem_sep void ensurePathExists concode_elem_sep void setAcl concode_elem_sep long getRetryDelay concode_elem_sep List<ACL> getAcl concode_elem_sep void close concode_elem_sep void setRetryDelay concode_elem_sep void ensureExists
target: boolean function ( ) { return closed . get ( ) ; }