question: serialize current pings to a list . it is guaranteed that the list contains one ping response per node concode_field_sep DiscoveryNode node concode_elem_sep long clusterStateVersion concode_elem_sep ClusterName clusterName concode_elem_sep Map<DiscoveryNode,PingResponse> pings concode_elem_sep long id concode_elem_sep PingResponse[] EMPTY concode_elem_sep AtomicLong idGenerator concode_elem_sep DiscoveryNode master concode_field_sep void readFrom concode_elem_sep void ping concode_elem_sep void start concode_elem_sep long getClusterStateVersion concode_elem_sep DiscoveryNode master concode_elem_sep DiscoveryNode node concode_elem_sep void writeTo concode_elem_sep int size concode_elem_sep ClusterName clusterName concode_elem_sep String toString concode_elem_sep long id concode_elem_sep boolean addPing concode_elem_sep PingResponse readPingResponse
target: List < PingResponse > function ( ) { return new ArrayList < > ( pings . values ( ) ) ; }