INVALID_ASSOCIATION_KEY_CARDINALITY_CWPRJ1004E=CWPRJ1004E: Invalid association. Associations that are also keys can only have uni-directional OneToOne or ManyToOne relationships.
Explanation
This exception is unexpected. The cause is not immediately known.
User response
If the problem persists, see problem determination information on the WebSphere Application Server Support page at http://www.ibm.com/software/webservers/appserv/was/support/.