Inheritance Issues

[alvarommz]

Hello people

I would like to know whether you can help me with the following issue, posted by my application at deployment stage:

15:01:20,578 WARN [ServiceController] Problem creating service jboss.j2ee:service=EJB3,module=XCellDomain.par
java.lang.NullPointerException
at org.hibernate.util.StringHelper.root(StringHelper.java:150)
at org.hibernate.mapping.PersistentClass.getProperty(PersistentClass.java:348)
at org.hibernate.mapping.PersistentClass.getProperty(PersistentClass.java:357)
at org.hibernate.cfg.annotations.TableBinder.bindFk(TableBinder.java:136)
at org.hibernate.cfg.AnnotationBinder.bindClass(AnnotationBinder.java:519)
at org.hibernate.cfg.AnnotationConfiguration.processArtifactsOfType(AnnotationConfiguration.java:256)
at org.hibernate.cfg.AnnotationConfiguration.secondPassCompile(AnnotationConfiguration.java:191)
at org.hibernate.cfg.Configuration.buildMappings(Configuration.java:988)
at org.hibernate.ejb.Ejb3Configuration.buildMappings(Ejb3Configuration.java:607)
at org.hibernate.ejb.EventListenerConfigurator.configure(EventListenerConfigurator.java:75)
at org.hibernate.ejb.Ejb3Configuration.createEntityManagerFactory(Ejb3Configuration.java:473)
at org.hibernate.ejb.Ejb3Configuration.createContainerEntityManagerFactory(Ejb3Configuration.java:202)
at org.hibernate.ejb.HibernatePersistence.createContainerEntityManagerFactory(HibernatePersistence.java:78)
at org.jboss.ejb3.Ejb3Deployment.initializeManagedEntityManagerFactory(Ejb3Deployment.java:512)
at org.jboss.ejb3.Ejb3Deployment.create(Ejb3Deployment.java:253)
at org.jboss.ejb3.Ejb3JmxDeployment.create(Ejb3JmxDeployment.java:230)
at org.jboss.ejb3.Ejb3Module.createService(Ejb3Module.java:34)
at org.jboss.system.ServiceMBeanSupport.jbossInternalCreate(ServiceMBeanSupport.java:245)
at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:228)
at sun.reflect.GeneratedMethodAccessor70.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:141)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:80)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:72)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:245)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:644)
at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:943)
at $Proxy0.create(Unknown Source)
at org.jboss.system.ServiceController.create(ServiceController.java:341)
at org.jboss.system.ServiceController.create(ServiceController.java:284)
at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:141)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:80)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:72)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:245)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:644)
at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:176)
at $Proxy10.create(Unknown Source)
at org.jboss.ejb3.EJB3Deployer.create(EJB3Deployer.java:208)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:141)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:80)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:72)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:245)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:644)
at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:176)
at $Proxy11.create(Unknown Source)
at org.jboss.deployment.MainDeployer.create(MainDeployer.java:935)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:789)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:753)
at sun.reflect.GeneratedMethodAccessor7.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:141)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:80)
at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:118)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:74)
at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:127)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:74)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:245)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:644)
at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:176)
at $Proxy6.deploy(Unknown Source)
at org.jboss.deployment.scanner.URLDeploymentScanner.deploy(URLDeploymentScanner.java:319)
at org.jboss.deployment.scanner.URLDeploymentScanner.scan(URLDeploymentScanner.java:507)
at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.doScan(AbstractDeploymentScanner.java:192)
at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.loop(AbstractDeploymentScanner.java:203)
at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.run(AbstractDeploymentScanner.java:182)
15:01:20,609 INFO [EJB3Deployer] Deployed: file:/D:/Java/jboss-4.0.3/server/all/deploy/XCellDomain.par

The cause of this issue is the following entity bean:

@Entity
@Table( name="cdmn_FacturasCompra", schema= "CellDom" )
@Inheritance(discriminatorValue = "OFacturaCompra")
@PrimaryKeyJoinColumns({
 @PrimaryKeyJoinColumn(name = "EmprId", referencedColumnName="EmprId" ),
 @PrimaryKeyJoinColumn(name = "FactNo", referencedColumnName="FactNo")
})
public class OFacturaCompra extends OFactura implements Serializable
{
 private static final long serialVersionUID = 1L;
....

which inherits from

@Entity
@Table( name="cdmn_facturas", schema= "CellDom" ) // The superclass table
@Inheritance( strategy=InheritanceType.JOINED,
 discriminatorValue = "OFactura",
 discriminatorType=DiscriminatorType.STRING)
@DiscriminatorColumn(name="ObjClass")
public class OFactura extends CEJB3Validator implements Serializable
{
 //------------------------------------------------------------------
 // Enumerations
 //------------------------------------------------------------------
 private static final long serialVersionUID = 1L;

 public enum MPago {Nulo, Inmediato, Plazo, Crédito}
 public enum MPlazos {Nulo, Dias, Meses, Años}

 protected OFacturaPK FactPK;
 protected Timestamp Fecha;
 protected double ValorTotal;

This entity uses a composed primary key as shown in the following fragment of code.

@Embeddable(access=AccessType.PROPERTY)
@Table(name="cdmn_Facturas", schema= "CellDom")
public class OFacturaPK extends CEJB3Validator implements Serializable
{

 //------------------------------------------------------------------
 // Attributes
 //------------------------------------------------------------------
 private static final long serialVersionUID = 1L;
 protected OCorporacion empr;
 protected String factNo;

....

 @ManyToOne( targetEntity=com.aemm.celldomn.entity.OCorporacion.class,
 fetch=EAGER, cascade={CascadeType.REFRESH})
 @JoinColumn(name="EmprId", referencedColumnName="EmprId" )
 public OCorporacion getEmpr()
 {
 return empr;
 }

I suspect the problem has to do with the annotations but I have not got to identify where it is exactly. I have read EJB3 and hibbernate handbooks but info in those manuals relating inheritance is not quite deep as to show me the way. I really need your help.

Thanks in advance
Alvaro E Martinez M
[e-mail]

[alvarommz]

Hi, folks

There is anyone that can help me on this????
I really need it.

thanks
Alvaro Martinez M
[e-mail]

[epbernard]

Can you try that on the latest Hibernate EntityManager. If this still happen, send a runnable test case to http://opensource2.atlassian.com/projects/hibernate/secure/Dashboard.jspa

But from what I can see, this cannot happen