i'm using jboss 3.2.3 and tomcat. my app is a simple war file. all the dependent jars (hibernate, mysql driver, etc) are in WEB-INF/lib .. I've tried all the versions of mysql i could find. I have not yet attempted a more elaborate setup (i.e. SARs, etc)

Any ideas? I feel that it has to do with my version of the mysql driver, but changing it seems to have no effect. any ideas? org.gjt.mm.mysql.jdbc2.Connection.prepareStatement doesn't seem to be a method in any of the mysql connector jars i've looked in.

thanks

23:49:21,732 ERROR [Engine] ----- Root Cause -----
java.lang.AbstractMethodError: org.gjt.mm.mysql.jdbc2.Connection.prepareStatement(Ljava/lang/String;I)Ljava/sql/PreparedStatement;
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at net.sf.hibernate.util.GetGeneratedKeysHelper.prepareStatement(GetGeneratedKeysHelper.java:39)
at net.sf.hibernate.impl.BatcherImpl.getPreparedStatement(BatcherImpl.java:246)
at net.sf.hibernate.impl.BatcherImpl.prepareStatement(BatcherImpl.java:61)
at net.sf.hibernate.persister.EntityPersister.insert(EntityPersister.java:524)
at net.sf.hibernate.persister.EntityPersister.insert(EntityPersister.java:432)
at net.sf.hibernate.impl.ScheduledIdentityInsertion.execute(Sche

Put the driver jar (the latest one: mysql-connector-java-3.0.10-stable-bin.jar) in JBOSS_HOME/server/[your configuration]/lib

Remove ALL OTHER MySQL driver jars from:
- your WAR application (WEB-INF/lib)
- JBOSS_HOME/lib
- JBOSS_HOME/server/[your configuration]/lib

Thanks, that did the trick!