Ora STAT Agent crashing with java errors - Caused by: java.io.IOException: ping timeout. (4332785)

The ora STAT agent is crashing with following message :

WARN - Connection failure, use javax.jms.Connection.setExceptionListener() to handle this error and reconnect
org.jboss.mq.SpyJMSException: No pong received; - nested throwable: (java.io.IOException: ping timeout.)
at org.jboss.mq.Connection$PingTask.run(Connection.java:1305)
at EDU.oswego.cs.dl.util.concurrent.ClockDaemon$RunLoop.run(ClockDaemon.java:364)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.io.IOException: ping timeout.
... 3 more
2011-10-04 00:02:15 WARN - Connection failure, use javax.jms.Connection.setExceptionListener() to handle this error and reconnect
org.jboss.mq.SpyJMSException: No pong received; - nested throwable: (java.io.IOException: ping timeout.)
at org.jboss.mq.Connection$PingTask.run(Connection.java:1305)
at EDU.oswego.cs.dl.util.concurrent.ClockDaemon$RunLoop.run(ClockDaemon.java:364)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.io.IOException: ping timeout.
... 3 more
2011-10-04 00:02:36 INFO - Main processor stopping...
2011-10-04 00:02:36 VERBOSE - Closing topic connection...
2011-10-04 00:03:23 INFO - Main processor stopped

The issue seemed to be with the physical memory on the server where stat central agent was hosted . In this particular case, customer increased the memory and it has fixed the issue .