question: private TombstoneService . State createTombStoneState ( String availabilityZone ) { TombstoneService . State tombStoneState = new TombstoneService . State ( ) ; tombStoneState . entityId = ServiceUtils . getIDFromDocumentSelfLink ( availabilityZone ) ; tombStoneState . entityKind = AVAILABILITY_ZONE_ENTITY_KIND ; tombStoneState . tombstoneTime = System . currentTimeMillis ( ) ; return tombStoneState ; }
target:  Creates Tombstone state for availability zone.