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Typically this message can be explained by:
However, connections failing validation could also produce this condtion. Could you post your *-ds.xml file?
<?xml version="1.0" encoding="UTF-8"?> <datasources> <!-- ===================================================================== --> <!-- --> <!-- ORADB --> <!-- --> <!-- ===================================================================== --> <local-tx-datasource> <jndi-name>/jdbc/ORADB</jndi-name> <connection-url>jdbc:oracle:thin:@ora.somewhere.de:1521:oradb</connection-url> <driver-class>oracle.jdbc.driver.OracleDriver</driver-class> <exception-sorter-class-name>org.jboss.resource.adapter.jdbc.vendor.OracleExceptionSorter</exception-sorter-class-name> <metadata> <type-mapping>Oracle</type-mapping> </metadata> </local-tx-datasource> </datasources>
After reading your anserer, I have tried around a bit more and now dont get the Message to show up again.
If performance could be a cause, then this might have had to to with the old maschine I was using before (JBoss started in Eclipse).
The weird thing is that it showed with the first call, before any output came form the invoked bean and that I didnt see it before. I would have expected it to show up at a later point after some invokations and also the -ds.xml are one of the things that have been extremley consistent :-).
I noticed in a different config, that I used the type mapping Oracle9i rather than just Oracle, but I have tried both today with the same result (no destroying).
I'll test some more to see if it is really gone...
Thanks for your fast reply !