Java EE (Java Enterprise Edition) General Discussion

I have statefull session CMT bean and I have a method

public void meth1() {
try {
dao1.method1(connection);
dao2.method2(connection);
} catch (SQLException ex) {
sessioncontext.setRollbackOnly();
throw (application exception);
}
}

If dao2.method2 raises sqlexception then whatever happend in dao1.method1 is committed. I have "Required" as transaction attribute for this session method.

Also I cannot raise system exception as this removes the session bean instance. We are using j2ee 1.2.

How to rollback for application errors.

Thanks in advance