Since switching to JBossCache 1.4.0.GA I get many of the following log-entries: 12:08:59,360 ERROR [TreeCacheMarshaller140] Unknown Magic Number 49 12:08:59,379 INFO [VersionAwareMarshaller] Caught exception unmarshalling stream with specific versioned marshaller class org.jboss.cache.marshall.TreeCacheMarshaller140. Attempting to try again with legacy marshaller class org.jboss.cache.marshall.LegacyTreeCacheMarshaller 12:08:59,390 ERROR [RpcDispatcher] exception=java.io.StreamCorruptedException: invalid stream header 12:09:13,947 ERROR [TreeCacheMarshaller140] Unknown Magic Number 49 12:09:13,962 INFO [VersionAwareMarshaller] Caught exception unmarshalling stream with specific versioned marshaller class org.jboss.cache.marshall.TreeCacheMarshaller140. Attempting to try again with legacy marshaller class org.jboss.cache.marshall.LegacyTreeCacheMarshaller 12:09:13,970 ERROR [RpcDispatcher] exception=java.io.StreamCorruptedException: invalid stream header What does that mean or what can we do about it? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3958774#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...