[hibernate-issues] [Hibernate-JIRA] Created: (HHH-6811) java.lang.ClassCastException when using @JoinColumnsOrFormulas

[Vladimir Tsichevski (JIRA)]

 java.lang.ClassCastException when using @JoinColumnsOrFormulas
---------------------------------------------------------------

                 Key: HHH-6811
                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-6811
             Project: Hibernate Core
          Issue Type: Bug
    Affects Versions: 3.6.8
         Environment: Ubuntu Linux, Oracle 11G DB
            Reporter: Vladimir Tsichevski


The following declaration:

@Entity
@Table(name = "SOMETABLE")
public class Process {
  @Id
  @Column(name = "ID", length = 19, nullable = false)
  long id;

  @ManyToOne
  @JoinColumnsOrFormulas({ @JoinColumnOrFormula(formula=@JoinFormula(value="PARENTID")) })
  @Fetch(FetchMode.JOIN)
  Process parent;
}

causes the following exception:

java.lang.ClassCastException: org.hibernate.mapping.Formula cannot be cast to org.hibernate.mapping.Column
	at org.hibernate.cfg.annotations.TableBinder.bindFk(TableBinder.java:360)
	at org.hibernate.cfg.annotations.CollectionBinder.bindCollectionSecondPass(CollectionBinder.java:1460)
	at org.hibernate.cfg.annotations.CollectionBinder.bindOneToManySecondPass(CollectionBinder.java:766)
	at org.hibernate.cfg.annotations.CollectionBinder.bindStarToManySecondPass(CollectionBinder.java:696)
	at org.hibernate.cfg.annotations.CollectionBinder$1.secondPass(CollectionBinder.java:645)
	at org.hibernate.cfg.CollectionSecondPass.doSecondPass(CollectionSecondPass.java:65)
	at org.hibernate.cfg.Configuration.originalSecondPassCompile(Configuration.java:1716)
	at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1423)
	at org.hibernate.cfg.Configuration.buildMappings(Configuration.java:1375)
	at org.hibernate.ejb.Ejb3Configuration.buildMappings(Ejb3Configuration.java:1519)
	at org.hibernate.ejb.EventListenerConfigurator.configure(EventListenerConfigurator.java:193)
	at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:1100)
	at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:904)
	...

Note: if I just use:

@ManyToOne @JoinColumn(name = "PARENTID")

everything works well.

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