Unknown Entity when persisting seam managed JPA entity ------------------------------------------------------ Key: JBSEAM-2983 URL: http://jira.jboss.com/jira/browse/JBSEAM-2983 Project: Seam Issue Type: Bug Affects Versions: 2.0.1.GA Reporter: Guillaume Jeudy Priority: Minor Caused by: java.lang.IllegalArgumentException: Unknown entity: com.archinsurance.rdm.entity.packages.impl.RefReleasePackageImpl_$$_javassist_4 at org.hibernate.ejb.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:215) when attempting to persist a seam managed JPA entity. Seam instantiates a javassist proxy and this is what the user app is trying to persist. The exception is not thrown when the entity is marked with @Entity annotation, if it is mapped with XML hibernate mapping definition it will fail with the above exception. Implement a consistent behavior to handle the seam managed JPA entity usecase regardless of the mapping technique being used. As recommended by Pete Muir this use case should not be utilized. Suggested behavior should be to throw a more explicit exception on startup whenever this invalid usecase is detected. More details in the below forum thread: http://seamframework.org/Community/UnknownEntityWhenPersistingSeamManaged... -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://jira.jboss.com/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira