Hello! I have just migrated to JBossCache-1.4.1.SP1 (JBoss 4.0.3SP1). I copied jboss-cache.jar and jboss-serialization.jar to jboss' lib dir. With two machines, the former to startup gives the error below when the second starts up. Despite the error on node discovery, everything works fine during execution. Any help would be appreciated. 2007-02-12 09:04:31,198 WARN [org.jboss.ha.framework.interfaces.HAPartition.DefaultPartition] failed unserializing message buffer (msg=[dst: 228.1.2.3:55556, src: 192.168.1.156:1737 (2 headers), size = 289 bytes]) java.io.StreamCorruptedException: invalid stream header at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:764) at java.io.ObjectInputStream.(ObjectInputStream.java:277) at org.jboss.invocation.MarshalledValueInputStream.(MarshalledValueInputStream.java:60) at org.jboss.ha.framework.server.HAPartitionImpl.objectFromByteBuffer(HAPartitionImpl.java:135) at org.jboss.ha.framework.server.HAPartitionImpl.handle(HAPartitionImpl.java:943) at org.jgroups.blocks.RequestCorrelator.handleRequest(RequestCorrelator.java:650) at org.jgroups.blocks.RequestCorrelator.receiveMessage(RequestCorrelator.java:535) at org.jgroups.blocks.RequestCorrelator.receive(RequestCorrelator.java:358) at org.jgroups.blocks.MessageDispatcher$ProtocolAdapter.up(MessageDispatcher.java:775) at org.jgroups.JChannel.up(JChannel.java:1091) at org.jgroups.stack.ProtocolStack.up(ProtocolStack.java:377) at org.jgroups.stack.ProtocolStack.receiveUpEvent(ProtocolStack.java:393) at org.jgroups.stack.Protocol.passUp(Protocol.java:538) at org.jgroups.protocols.pbcast.STATE_TRANSFER.up(STATE_TRANSFER.java:158) at org.jgroups.stack.UpHandler.run(Protocol.java:60) Thanks in advance, Victor Batista View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4014877#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...