java.io.StreamCorruptedException: invalid stream header - When using UDP protocol for cluster

Issue

Getting the following error in my jboss log.

2011-09-27 16:49:05,785 WARN  [org.jgroups.protocols.UDP] packet from /xxx.xxx.xxx.xxx:xxxxx has different version (?) from ours (0227). This may cause problems
2011-09-27 16:49:05,785 ERROR [org.jgroups.protocols.UDP] exception=java.io.StreamCorruptedException: invalid stream header
        at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:794)
        at java.io.ObjectInputStream.<init>(ObjectInputStream.java:307)
        at org.jgroups.protocols.UDP.handleIncomingUdpPacket(UDP.java:670)
        at org.jgroups.protocols.UDP.run(UDP.java:249)
        at java.lang.Thread.run(Thread.java:811)