I just noticed that a XA Datasource for Oracle8.1.7 under JBoss3.2beta2 does not work under JDK 1.3.1. It however works fine under JDK 1.4.
Under JDK 1.3.1 I get an errormessage during startup when my CMP 2.0 entiy beans are activated:
java.lang.LinkageError: loader constraints violated when linking javax/sql/ConnectionEventListener class
Is JBoss 3.2 supposed to work under JDK 1.3.1?
It seems to only work with JDK1.4.. See my posting on JBoss/Oracle XA.