code: public ExceptionClassFilter<Chunk<T>> getOrCreateNoRollbackExceptionClasses()
     {
        Node node = childNode.getOrCreate("no-rollback-exception-classes");
        ExceptionClassFilter<Chunk<T>> noRollbackExceptionClasses = new ExceptionClassFilterImpl<Chunk<T>>(this, "no-rollback-exception-classes", childNode, node);
        return noRollbackExceptionClasses;
     }
docs: If not already created, a new <code>no-rollback-exception-classes</code> element with the given value will be created.
  Otherwise, the existing <code>no-rollback-exception-classes</code> element will be returned.
  @return  a new or existing instance of <code>ExceptionClassFilter<Chunk<T>></code>