We are using JBoss 4.0.4.GA and JBoss Messaging 1.0.1.GA

When message is published , receiver receives the message.
everything is working fine with this setup.

When receiver is stopped by Ctrl+C or just shutdown the system in which receiver is running. i am getting the below warnings in Server Log console...

Is there any impact or any problem for the server.

Please share your valuable thoughts with us.
I wud very much appreciate it

20:52:26,073 INFO [Server] JBoss (MX MicroKernel) [4.0.4.GA (build: CVSTag=JBoss_4_0_4_GA date=
:50s:168ms
21:15:34,284 WARN [SimpleConnectionManager] A problem has been detected with the connection to
4o90t2u-1-f4o910pb-4. It is possible the client has exited without closing its connection(s) or
All connection resources corresponding to that client process will now be removed.
09:45:58,061 WARN [SimpleConnectionManager] A problem has been detected with the connection to
4o9j810-1-f4o9jg4v-4. It is possible the client has exited without closing its connection(s) or
All connection resources corresponding to that client process will now be removed.
11:00:31,208 WARN [SimpleConnectionManager] A problem has been detected with the connection to
remote client a0i36-b5fa6s-f4o90y0i-1-f4o91f7i-4. It is possible the client has exited without c
losing its connection(s) or there is a network problem. All connection resources corresponding t
o that client process will now be removed.
11:18:20,401 WARN [SimpleConnectionManager] A problem has been detected with the connection to
remote client a0i36-1lslsb-f4p34dz1-1-f4p34rm9-4. It is possible the client has exited without c
losing its connection(s) or there is a network problem. All connection resources corresponding t
o that client process will now be removed.
11:18:35,479 WARN [SimpleConnectionManager] A problem has been detected with the connection to
remote client a0i36-50tqg-f4p3bn2y-1-f4p3bz3x-4. It is possible the client has exited without cl
osing its connection(s) or there is a network problem. All connection resources corresponding to
 that client process will now be removed.
11:23:33,568 WARN [SimpleConnectionManager] A problem has been detected with the connection to
remote client a0i37-3f3ry3-f4p0ebp9-1-f4p0eruq-4. It is possible the client has exited without c
losing its connection(s) or there is a network problem. All connection resources corresponding t
o that client process will now be removed.