"org.hibernate.WrongClassException: Object with id: <id> was not of the specified subclass" in Hibernate

Solution Verified - Updated -

Issue

  • During execution of an HQL query against the root entity of a SINGLE_TABLE inheritance hierarchy, WrongClassException is raised

    ... ERROR ... org.hibernate.WrongClassException: Object with id: 99 was not of the specified subclass: org.test.MyEntity (Discriminator: EMPLOYEE)
    

Environment

  • Red Hat JBoss Enterprise Application Platform (EAP) 6
  • Hibernate 4

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