[hibernate-issues] [Hibernate-JIRA] Created: (ANN-698) @Transient property leads to org.hibernate.AnnotationException: Property has an unbound type

[Sebastian Baltes (JIRA)]

@Transient property leads to org.hibernate.AnnotationException: Property has an unbound type
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                 Key: ANN-698
                 URL: http://opensource.atlassian.com/projects/hibernate/browse/ANN-698
             Project: Hibernate Annotations
          Issue Type: Bug
    Affects Versions: 3.3.0.ga
         Environment: hibernate3.jar: 3.2.5.ga
hibernate-annotations.jar: 3.3.0.GA
hibernate-commons-annotations.jar: 3.0.0.GA
hibernate-validator.jar: 3.0.0.GA

MySQL
            Reporter: Sebastian Baltes
         Attachments: log.txt

Transient fields are not ignored in Hibernate. I got an "Property has an unbound type" exception and found no workaround.

Entity:

import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Transient;

@Entity
public class Dummy<K> {
  
  @Id
  private Long id;
  
  @Transient
  transient private K dummyField;

  public Long getId() {
    return id;
  }

  public void setId(Long id) {
    this.id = id;
  }

  public K getDummyField() {
    return dummyField;
  }

  public void setDummyField(K dummyField) {
    this.dummyField = dummyField;
  }

}

Test Code:

      EntityManager em = EntityManagerSingleton.get();
      EntityTransaction tx = em.getTransaction();
      tx.begin();
      Dummy a = new Dummy();
      em.persist(a);
      tx.commit();

Exception:

java.lang.ExceptionInInitializerError
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
	at junit.framework.TestSuite.createTest(TestSuite.java:54)
	at junit.framework.TestSuite.addTestMethod(TestSuite.java:280)
	at junit.framework.TestSuite.<init>(TestSuite.java:140)
	at org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestLoader.getTest(JUnit3TestLoader.java:102)
	at org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestLoader.loadTests(JUnit3TestLoader.java:59)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:445)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)
Caused by: javax.persistence.PersistenceException: org.hibernate.AnnotationException: Property de.neise.gena.model.file.Dummy.dummyField has an unbound type and no explicit target entity. Resolve this Generic usage issue or set an explicit target attribute (eg @OneToMany(target=) or use an explicit @Type
	at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:258)
	at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:120)
	at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:51)
	at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:33)
	at de.neise.gena.model.testbase.BaseTest.<clinit>(BaseTest.java:19)
	... 13 more
Caused by: org.hibernate.AnnotationException: Property de.neise.gena.model.file.Dummy.dummyField has an unbound type and no explicit target entity. Resolve this Generic usage issue or set an explicit target attribute (eg @OneToMany(target=) or use an explicit @Type
	at org.hibernate.cfg.AnnotationBinder.addElementsOfAClass(AnnotationBinder.java:993)
	at org.hibernate.cfg.AnnotationBinder.getElementsToProcess(AnnotationBinder.java:833)
	at org.hibernate.cfg.AnnotationBinder.bindClass(AnnotationBinder.java:645)
	at org.hibernate.cfg.AnnotationConfiguration.processArtifactsOfType(AnnotationConfiguration.java:498)
	at org.hibernate.cfg.AnnotationConfiguration.secondPassCompile(AnnotationConfiguration.java:277)
	at org.hibernate.cfg.Configuration.buildMappings(Configuration.java:1115)
	at org.hibernate.ejb.Ejb3Configuration.buildMappings(Ejb3Configuration.java:1269)
	at org.hibernate.ejb.EventListenerConfigurator.configure(EventListenerConfigurator.java:150)
	at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:888)
	at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:186)
	at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:246)
	... 17 more

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