java.sql.SQLException: You cannot commit during a managed transaction

[Chema]

Hello:

I'm using JBoss 3.2 and EJB 2.0 with iBatis 2.3.0
I've got configured a external transaction manager in SQLMap
configuration file.

When an EJB component ( session bean ) tries to delete record using by
iBatis sqlMap client, JBoss retrieve this
error:

11:02:09,406 ERROR [Connection] Error calling Connection.commit:
java.sql.SQLException: You cannot commit during a managed transaction!
        at 
org.jboss.resource.adapter.jdbc.BaseWrapperManagedConnection.jdbcCommit(BaseWrapperManagedConnection.java:525)



This error happens when I perform this

sqlMap.startTransaction();
sqlMap.delete("deleteRecords", param);
sqlMap.commitTransaction();
sqlMap.endTransaction();


And with a single call (automatic transaction):

sqlMap.delete("deleteRecords", param);


I would like to delegate all transaction issues to external
transaction manager ( in this case, JBoss)
How I can solved this ? Any w/a ?


Thanks !!