When testing a normal failure mode using oracle thin persistence manager I get an exception when trying to add new messages. The sequence goes like this 1) Add 2 messages to the queue. ( On checking the jms_messages table there appears to be 4 messages being written. I assume it has something to with the blob workaround but not sure.) 2) Make sure MDB cannot deliver messages. 3) Turn off server without exiting JBoss. (This seems to be a very normal failure condition to me) 4)Turn on Jboss server. (During startup JMS system barfs on the two records with null blobs. I worked around this by modifying the select query to only return messages with non-null blobs.) 5)Add more messages. This causes a SQL exception because each time you restart the server, the messageid is reset to zero. (I looked through the code to find that little nugget.) So I'd like to sub-class the oraclethinpersistence manager and goto the jms_messages table to find out what its highest messageId is, then increment it by one and use this as the messageid for the new message. I wrote a class that does just that but when I startup jboss I get an exception along the lines of major and minor version are incorrect. Is there something preventing me administratively, say an xml config option, that I need to change? Whats are some other alternatives to my situation? Josh View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4073225#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...