How do I do a OneToOne mapping to class from the Embedded class of another.

Hibernate version:3.2.0.GA

Mapping documents:

@Entity
@Table(name = "VEHICLE_PAYMENT_VEHICLE")
public class VehiclePaymentVehicle implements java.io.Serializable {

@EmbeddedId
private VehiclePaymentVehiclePK vehiclePaymentVehiclePK;

...

@Embeddable
public class VehiclePaymentVehiclePK implements java.io.Serializable {

// @Column(name = "CAR_ID", nullable=false, updatable=false)
// private Long carId;

@OneToOne(mappedBy="carId")
@JoinColumn(name="CAR_ID", referencedColumnName="CAR_ID")
private Car car;


@Entity
@Table(name = "CAR")
@SequenceGenerator(name = "car_seq_gen", sequenceName = "car_seq")
public class Car implements java.io.Serializable {

@Id
@GeneratedValue(generator = "car_seq_gen", strategy=GenerationType.AUTO)
@Column(name = "CAR_ID", nullable = false, updatable=false)
private Long carId;



Full stack trace of any exception that occurs:

javax.persistence.PersistenceException: java.lang.NullPointerException
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:37)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:27)
at com.autotrader.dc.domain.VehiclePaymentTest.initEmfAndEm(VehiclePaymentTest.java:41)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.junit.internal.runners.BeforeAndAfterRunner.invokeMethod(BeforeAndAfterRunner.java:74)
at org.junit.internal.runners.BeforeAndAfterRunner.runBefores(BeforeAndAfterRunner.java:50)
at org.junit.internal.runners.BeforeAndAfterRunner.runProtected(BeforeAndAfterRunner.java:33)
at org.junit.internal.runners.TestMethodRunner.runMethod(TestMethodRunner.java:75)
at org.junit.internal.runners.TestMethodRunner.run(TestMethodRunner.java:45)
at org.junit.internal.runners.TestClassMethodsRunner.invokeTestMethod(TestClassMethodsRunner.java:75)
at org.junit.internal.runners.TestClassMethodsRunner.run(TestClassMethodsRunner.java:36)
at org.junit.internal.runners.TestClassRunner$1.runUnprotected(TestClassRunner.java:42)
at org.junit.internal.runners.BeforeAndAfterRunner.runProtected(BeforeAndAfterRunner.java:34)
at org.junit.internal.runners.TestClassRunner.run(TestClassRunner.java:52)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:38)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460)
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: java.lang.NullPointerException
at org.hibernate.cfg.AnnotationBinder.bindOneToOne(AnnotationBinder.java:1960)
at org.hibernate.cfg.AnnotationBinder.processElementAnnotations(AnnotationBinder.java:1346)
at org.hibernate.cfg.AnnotationBinder.fillComponent(AnnotationBinder.java:1731)
at org.hibernate.cfg.AnnotationBinder.bindId(AnnotationBinder.java:1768)
at org.hibernate.cfg.AnnotationBinder.processElementAnnotations(AnnotationBinder.java:1229)
at org.hibernate.cfg.AnnotationBinder.bindClass(AnnotationBinder.java:733)
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:1039)
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)
... 24 more




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