org.apache.cassandra.gms
Interfaces 
FailureDetectorMBean
IEndPointStateChangePublisher
IEndPointStateChangeSubscriber
IFailureDetectionEventListener
IFailureDetector
IFailureNotification
Classes 
ApplicationState
EndPointState
FailureDetector
GossipDigest
GossipDigestAck2VerbHandler
GossipDigestAckVerbHandler
GossipDigestSynVerbHandler
Gossiper
GossiperJoinVerbHandler
VersionGenerator