Getting capture-schema (J2EE) to work with MaxDB

I am trying to achieve the above but the generated schema seems to have problems in the 'elms' part of the schema. I have compared it with deploytool generated schemas which are larger. If I had to guess I would say that the data regarding columns is not being properly read from the database via JDBC. Does anyone have experience of either this problem or a working J2EE (Sun Appserver) installation with MaxDB?