I would like to know the role of the each thread on coherence

Question

Help me.
I would like to know the role of the each thread on coherence.
There are too many kind of threads.
Example ~
GC Slave     GC Slave     RUNNABLE
RMI TCP Accept-1972     RMI TCP Accept-1972     RUNNABLE
Health Center trace subscriber     Health Center trace subscriber     RUNNABLE
LT=0:P=342534:O=0:port=55170     LT=0:P=342534:O=0:port=55170     RUNNABLE
Attach API wait loop     Attach API wait loop     RUNNABLE
PacketListener1     PacketListener1     RUNNABLE
PacketListener1P     PacketListener1P     RUNNABLE
PacketListenerN     PacketListenerN     RUNNABLE
Cluster|Member(Id=1, Timestamp=2013-04-05 10:45:44.655, Address=192.168.240.157:8088, MachineId=50044, Location=site:,machine:TMTEST-PC,process:5316, Role=CoherenceServer)     Cluster|Member(Id=1, Timestamp=2013-04-05 10:45:44.655, Address=192.168.240.157:8088, MachineId=50044, Location=site:,machine:TMTEST-PC,process:5316, Role=CoherenceServer)     RUNNABLE
RT=0:P=342534:O=0:TCPTransportConnection[addr=192.168.240.157,port=55178,local=55170]     RT=0:P=342534:O=0:TCPTransportConnection[addr=192.168.240.157,port=55178,local=55170]     RUNNABLE
Finalizer thread     Finalizer thread     RUNNABLE
WT=10     WT=10     RUNNABLE
main     main     TIMED_WAITING
IpMonitor     IpMonitor     TIMED_WAITING
Invocation:Management:EventDispatcher     Invocation:Management:EventDispatcher     TIMED_WAITING
Invocation:Management     Invocation:Management     TIMED_WAITING
DistributedCache     DistributedCache     TIMED_WAITING
JMX server connection timeout 52     JMX server connection timeout 52     TIMED_WAITING
RMI Scheduler(0)     RMI Scheduler(0)     WAITING
Thread-6     Thread-6     WAITING
stop JMX Server on shutdown     stop JMX Server on shutdown     WAITING
Logger@9228429 3.7.1.7     Logger@9228429 3.7.1.7     WAITING
PacketReceiver     PacketReceiver     WAITING
PacketPublisher     PacketPublisher     WAITING
PacketSpeaker     PacketSpeaker     WAITING
WT=7     WT=7     WAITING
WT=9     WT=9     WAITING
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Answer 1

Briefly
PacketListener1 PacketListener1P PacketListenerN - listening IO threads for TCMP transport protocol
Cluster|Member(Id=1, Timestamp=2013-04-05 10:45:44.655, Address=192.168.240.157:8088, MachineId=50044, Location=site:,machine:TMTEST-PC,process:5316, Role=CoherenceServer) - main thread for cluster service (discovery, node joing / leave, etc)
IpMonitor - IP monitor, participates in death detection scheme
Invocation:Management:EventDispatcher - Event dispatch thread for distributed JMX service in Coherence
Invocation:Management - main thread for distributed JMX service in Coherence
DistributedCache - main thread for DistributedCache cache service
Logger@9228429 3.7.1.7 - Coherence async logging thread
PacketReceiver - Thread dispatching incomming network packets
PacketPublisher - Thread sending out packets via TCMP
PacketSpeaker - Thread sending out packets via TCMP (offloads some work from PacketPublisher for better core utilization)