[hibernate-issues] [Hibernate-JIRA] Resolved: (ANN-427) throw "java.lang.IllegalStateException: Property parent has an unbound type and no explicit target entity." on generic type

throw "java.lang.IllegalStateException: Property parent has an unbound type and no explicit target entity." on generic type --------------------------------------------------------------------------------------------------------------------------- Key: ANN-427 URL: http://opensource.atlassian.com/projects/hibernate/browse/ANN-427 Project: Hibernate Annotations Type: Bug

Components: binder Versions: 3.2.0.cr1 Environment: Hibernate version: 3.2.0.cr2<br> Mapping documents: Annotations 3.2.0.cr1 Reporter: Zheng.Duan Fix For: 3.2.0.cr2 Attachments: jira.zip Original Estimate: 2 weeks Remaining: 2 weeks Classes and mapping code: <br> <code> @MappedSuperclass public abstract class Child<P extends Parent> { @Id Long id; @ManyToOne P parent; ... } @MappedSuperclass public abstract class Parent<C extends Child> { @Id @GeneratedValue Long id; @MapKey @OneToMany(mappedBy="parent") Map<Long,C> children = new HashMap<Long,C>(); ... } @Entity public class ChildHierarchy1 extends Child<ParentHierarchy1> { .... } @Entity public class ParentHierarchy1 extends Parent<ChildHierarchy1> { .... } @MappedSuperclass public class ChildHierarchy2<P extends ParentHierarchy2> extends Child<P> { .... } @MappedSuperclass public class ParentHierarchy2<C extends ChildHierarchy2> extends Parent<C> { .... } @Entity public class ChildHierarchy22 extends ChildHierarchy2<ParentHierarchy22> { .... } @Entity public class ParentHierarchy22 extends ParentHierarchy2<ChildHierarchy22> { .... } </code> Full stack trace of exception: <code> Caused by: java.lang.IllegalStateException: Property parent has an unbound type and no explicit target entity. at org.hibernate.cfg.AnnotationBinder.addElementsOfAClass(AnnotationBinder.java:938) at org.hibernate.cfg.AnnotationBinder.getElementsToProcess(AnnotationBinder.java:788) at org.hibernate.cfg.AnnotationBinder.bindClass(AnnotationBinder.java:615) at org.hibernate.cfg.AnnotationConfiguration.processArtifactsOfType(AnnotationConfiguration.java:353) at org.hibernate.cfg.AnnotationConfiguration.secondPassCompile(AnnotationConfiguration.java:265) at org.hibernate.cfg.Configuration.buildMappings(Configuration.java:1034) at org.hibernate.ejb.Ejb3Configuration.buildMappings(Ejb3Configuration.java:1015) at org.hibernate.ejb.EventListenerConfigurator.configure(EventListenerConfigurator.java:154) at org.hibernate.ejb.Ejb3Configuration.createEntityManagerFactory(Ejb3Configuration.java:751) at org.hibernate.ejb.Ejb3Configuration.createFactory(Ejb3Configuration.java:151) at org.hibernate.ejb.Ejb3Configuration.createEntityManagerFactory(Ejb3Configuration.java:205) ... 4 more </code> if let <code>org.hibernate.cfg.AnnotationBinder.hasExplicitTargetEntity(XProperty p)</code> return <code>true</code>(it return <code>false</code> actually) then throw:<br> <code> Caused by: org.hibernate.AnnotationException: @OneToOne or @ManyToOne on zhengduan.entities.ChildHierarchy22.parent references an unknown entity: zhengduan.entities.ParentHierarchy2 at org.hibernate.cfg.FkSecondPass.doSecondPass(FkSecondPass.java:40) at org.hibernate.cfg.AnnotationConfiguration.secondPassCompile(AnnotationConfiguration.java:288) at org.hibernate.cfg.Configuration.buildMappings(Configuration.java:1034) at org.hibernate.ejb.Ejb3Configuration.buildMappings(Ejb3Configuration.java:1015) at org.hibernate.ejb.EventListenerConfigurator.configure(EventListenerConfigurator.java:154) at org.hibernate.ejb.Ejb3Configuration.createEntityManagerFactory(Ejb3Configuration.java:751) at org.hibernate.ejb.Ejb3Configuration.createFactory(Ejb3Configuration.java:151) at org.hibernate.ejb.Ejb3Configuration.createEntityManagerFactory(Ejb3Configuration.java:205) ... 4 more </code> But it's wrong, <code>zhengduan.entities.ChildHierarchy22.parent</code> references <code>zhengduan.entities.ParentHierarchy22</code>, not <code>zhengduan.entities.ParentHierarchy2</code>!