Scenario
The schema of a legacy table has a 3 column primary key. 2 of the columns relate to the FK of table B, and the 3rd key relates to the FK of table C. I have no control over the database design and must map my CMP EJBs as-is.

The schema is: http://engel.us/ejbmapping/schema.gif

Problem
It doesn't appear that JBoss is flexible enough to support my schema. Is JBoss incapable of mapping this relationship? If JBoss can handle it, how do I define the ejb-jar.xml relationships? When JBoss loads my beans, I get this error:

EJB
org.jboss.deployment.DeploymentException: Mappings were not provided for all fie
lds: unmaped fields=[classIndex] in role=x_CLASS_SYM-cmp20-has-x_MASTER_SYMB
OL-cmp20