Exception -not-null property references a null or transient value
HI,
I am trying to save a relational table and it is throwing the following exception in Hibernate .Pls help me
Caused by: org.hibernate.PropertyValueException: not-null property references a null or transient value: com.aexp.acqsys.sim.dm.DmPackageContents._contentsByServiceBackref
at org.hibernate.engine.Nullability.checkNullability(Nullability.java:72)
at org.hibernate.event.def.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:265)
at org.hibernate.event.def.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:167)
at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:101)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:186)
at org.hibernate.event.def.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:33)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:175)
at org.hibernate.event.def.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:27)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:70)
at org.hibernate.impl.SessionImpl.fireSave(SessionImpl.java:557)
at org.hibernate.impl.SessionImpl.save(SessionImpl.java:545)
at org.hibernate.impl.SessionImpl.save(SessionImpl.java:541)
at com.amex.testsim.flow.datapackages.ManageDatapackagesController$3.doInHibernate(ManageDatapackagesController.java:519)
at com.amex.testsim.hibernate.support.HibernateController.doInHibernate(HibernateController.java:49)
at com.amex.testsim.flow.datapackages.ManageDatapackagesController.copyDataPackage(ManageDatapackagesController.java:471)
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:585)
at org.apache.myfaces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:129)