I would need more information to know precisely what's going wrong. I'm guessing that the exception occurs in the context of a JBossMessaging connection, where the JBossMessaging server is trying to send some messages to a consumer client. For some reason, the attempt to write the messages to the connection fails. It could be because the client closed unexpectedly. It could be because of a network failure. It could be because a firewall has killed an idle connection.
Do any of these sound plausible?