I am getting the following error while trying to insert.

org.hibernate.NonUniqueObjectException: a different object with the same identifier value was already associated with the session: [hibernate.dataobjects.BorrowerDO#55656]
at org.hibernate.event.def.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:142)
at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:107)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:184)
at org.hibernate.event.def.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:33)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:173)
at org.hibernate.event.def.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:27)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:69)
at org.hibernate.impl.SessionImpl.save(SessionImpl.java:429)
at org.hibernate.impl.SessionImpl.save(SessionImpl.java:424)
at hibernate.util.HibernateDBHelper.saveAuction(HibernateDBHelper.java:90)
at com.statestreet.gsl.sle.auction.bean.AuctionBean.execute(AuctionBean.java:101)
at com.statestreet.gsl.sle.auction.controller.AuctionServlet.forward(AuctionServlet.java:190)
at com.statestreet.gsl.sle.auction.controller.AuctionAdminController.redirectTo(AuctionAdminController.java:71)
at com.statestreet.gsl.sle.auction.controller.AuctionAdminController.doPost(AuctionAdminController.java:42)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at com.statestreet.gsl.sle.auction.controller.AuctionServlet.service(AuctionServlet.java:283)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at com.ibm.servlet.engine.webapp.StrictServletInstance.doService(ServletManager.java:827)
at com.ibm.servlet.engine.webapp.StrictLifecycleServlet._service(StrictLifecycleServlet.java:167)
at com.ibm.servlet.engine.webapp.IdleServletState.service(StrictLifecycleServlet.java:297)
at com.ibm.servlet.engine.webapp.StrictLifecycleServlet.service(StrictLifecycleServlet.java:110)
at com.ibm.servlet.engine.webapp.ServletInstance.service(ServletManager.java:472)
at com.ibm.servlet.engine.webapp.ValidServletReferenceState.dispatch(ServletManager.java:1012)
at com.ibm.servlet.engine.webapp.ServletInstanceReference.dispatch(ServletManager.java:913)
at com.ibm.servlet.engine.webapp.WebAppRequestDispatcher.handleWebAppDispatch(WebAppRequestDispatcher.java:523)
at com.ibm.servlet.engine.webapp.WebAppRequestDispatcher.dispatch(WebAppRequestDispatcher.java:282)
at com.ibm.servlet.engine.webapp.WebAppRequestDispatcher.forward(WebAppRequestDispatcher.java:112)
at com.ibm.servlet.engine.srt.WebAppInvoker.doForward(WebAppInvoker.java:91)
at com.ibm.servlet.engine.srt.WebAppInvoker.handleInvocationHook(WebAppInvoker.java:184)
at com.ibm.servlet.engine.invocation.CachedInvocation.handleInvocation(CachedInvocation.java:67)
at com.ibm.servlet.engine.invocation.CacheableInvocationContext.invoke(CacheableInvocationContext.java:106)
at com.ibm.servlet.engine.srp.ServletRequestProcessor.dispatchByURI(ServletRequestProcessor.java:125)
at com.ibm.servlet.engine.oselistener.OSEListenerDispatcher.service(OSEListener.java:315)
at com.ibm.servlet.engine.http11.HttpConnection.handleRequest(HttpConnection.java:60)
at com.ibm.ws.http.HttpConnection.readAndHandleRequest(HttpConnection.java:323)
at com.ibm.ws.http.HttpConnection.run(HttpConnection.java:252)
at com.ibm.ws.util.CachedThread.run(ThreadPool.java:122)

Thanks and Regards,
Shrimon.

The object is already known to the session. Don't know the context of the error so the best solution is imposible to guess. Try clearing the session cache before you save the new object. Note: There could be a more serious problem or architectural issue that is causing this.

Actually i get the error from the foloowing context.


BorrowerDO borrowerDO=new BorrowerDO();
for(int i=0;i<borrowerList.size();i++){

borrowerDO=(BorrowerDO)borrowerList.get(i);
session.save(borrowerDO);
}


tx.commit();

Thanks,
Shrimon.

Hi,

It seems that in your borrowerList you have at least 2 objects having the same id.