hi i created an instance of token and trying to signal the process with the newly created token. here im not using the root token for signalling. so im trying to save the data in the tables and im getting the token id of the root token as 500 and the token which i created has the token id 0. and its throwing the error hibernate transient object exception. can any one just help me out here is the code package com.westpac.nzlo.tempjbpm; import java.io.BufferedReader; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.IOException; import java.io.InputStreamReader; import org.jbpm.JbpmConfiguration; import org.jbpm.JbpmContext; import org.jbpm.graph.exe.ProcessInstance; import org.jbpm.graph.exe.Token; public class CreateDuplicateToken { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub JbpmConfiguration jbpmConfiguration = null; JbpmContext jbpmContext = null; try { jbpmConfiguration = JbpmConfiguration.parseInputStream(new FileInputStream("src/config.files/jbpm.cfg.xml")); } catch (FileNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); } jbpmContext = jbpmConfiguration.createJbpmContext(); System.out.println("Create Duplicate Token:"); System.out.print("Enter the ProcessInstance ID: "); BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); long processInstanceID = 0 ; try { processInstanceID = Long.parseLong(br.readLine()); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } ProcessInstance processInstance = jbpmContext.loadProcessInstanceForUpdate(processInstanceID); Token rootToken = processInstance.getRootToken(); Token duplicateToken = new Token(); duplicateToken.setNode(rootToken.getNode()); System.out.println("Root TokenID: "+rootToken.getId()); System.out.println("Duplicate TokenID: "+duplicateToken.getId()); System.out.println("ProcessInstance of Duplicate: "+duplicateToken.getProcessInstance().getId()); System.out.println("Parent of Duplicate: "+duplicateToken.getParent().getId()); jbpmContext.save(duplicateToken); duplicateToken.signal(); jbpmContext.save(duplicateToken); jbpmContext.close(); } } here is the exception org.jbpm.persistence.JbpmPersistenceException: couldn't commit hibernate session at org.jbpm.persistence.db.DbPersistenceService.close(DbPersistenceService.java:171) at org.jbpm.svc.Services.close(Services.java:211) at org.jbpm.JbpmContext.close(JbpmContext.java:141) at com.westpac.nzlo.tempjbpm.CreateDuplicateToken.main(CreateDuplicateToken.java:66) Caused by: org.hibernate.TransientObjectException: object references an unsaved transient instance - save the transient instance before flushing: org.jbpm.graph.exe.Token at org.hibernate.engine.ForeignKeys.getEntityIdentifierIfNotUnsaved(ForeignKeys.java:216) at org.hibernate.type.EntityType.getIdentifier(EntityType.java:108) at org.hibernate.type.ManyToOneType.isDirty(ManyToOneType.java:221) at org.hibernate.type.TypeFactory.findDirty(TypeFactory.java:476) at org.hibernate.persister.entity.AbstractEntityPersister.findDirty(AbstractEntityPersister.java:2803) at org.hibernate.event.def.DefaultFlushEntityEventListener.dirtyCheck(DefaultFlushEntityEventListener.java:467) at org.hibernate.event.def.DefaultFlushEntityEventListener.isUpdateNecessary(DefaultFlushEntityEventListener.java:190) at org.hibernate.event.def.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:113) at org.hibernate.event.def.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:195) at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:76) at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:26) at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:980) at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:353) at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:106) at org.jbpm.persistence.db.DbPersistenceService.close(DbPersistenceService.java:161) ... 3 more 18:06:33,500 [main] ERROR Services : problem closing service 'persistence' org.jbpm.persistence.JbpmPersistenceException: couldn't commit hibernate session at org.jbpm.persistence.db.DbPersistenceService.close(DbPersistenceService.java:171) at org.jbpm.svc.Services.close(Services.java:211) at org.jbpm.JbpmContext.close(JbpmContext.java:141) at com.westpac.nzlo.tempjbpm.CreateDuplicateToken.main(CreateDuplicateToken.java:66) Caused by: org.hibernate.TransientObjectException: object references an unsaved transient instance - save the transient instance before flushing: org.jbpm.graph.exe.Token at org.hibernate.engine.ForeignKeys.getEntityIdentifierIfNotUnsaved(ForeignKeys.java:216) at org.hibernate.type.EntityType.getIdentifier(EntityType.java:108) at org.hibernate.type.ManyToOneType.isDirty(ManyToOneType.java:221) at org.hibernate.type.TypeFactory.findDirty(TypeFactory.java:476) at org.hibernate.persister.entity.AbstractEntityPersister.findDirty(AbstractEntityPersister.java:2803) at org.hibernate.event.def.DefaultFlushEntityEventListener.dirtyCheck(DefaultFlushEntityEventListener.java:467) at org.hibernate.event.def.DefaultFlushEntityEventListener.isUpdateNecessary(DefaultFlushEntityEventListener.java:190) at org.hibernate.event.def.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:113) at org.hibernate.event.def.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:195) at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:76) at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:26) at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:980) at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:353) at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:106) at org.jbpm.persistence.db.DbPersistenceService.close(DbPersistenceService.java:161) ... 3 more org.jbpm.JbpmException: problem closing services {persistence=org.jbpm.persistence.JbpmPersistenceException: couldn't commit hibernate session} at org.jbpm.svc.Services.close(Services.java:223) at org.jbpm.JbpmContext.close(JbpmContext.java:141) at com.westpac.nzlo.tempjbpm.CreateDuplicateToken.main(CreateDuplicateToken.java:66) Caused by: org.jbpm.persistence.JbpmPersistenceException: couldn't commit hibernate session at org.jbpm.persistence.db.DbPersistenceService.close(DbPersistenceService.java:171) at org.jbpm.svc.Services.close(Services.java:211) ... 2 more Caused by: org.hibernate.TransientObjectException: object references an unsaved transient instance - save the transient instance before flushing: org.jbpm.graph.exe.Token at org.hibernate.engine.ForeignKeys.getEntityIdentifierIfNotUnsaved(ForeignKeys.java:216) at org.hibernate.type.EntityType.getIdentifier(EntityType.java:108) at org.hibernate.type.ManyToOneType.isDirty(ManyToOneType.java:221) at org.hibernate.type.TypeFactory.findDirty(TypeFactory.java:476) at org.hibernate.persister.entity.AbstractEntityPersister.findDirty(AbstractEntityPersister.java:2803) at org.hibernate.event.def.DefaultFlushEntityEventListener.dirtyCheck(DefaultFlushEntityEventListener.java:467) at org.hibernate.event.def.DefaultFlushEntityEventListener.isUpdateNecessary(DefaultFlushEntityEventListener.java:190) at org.hibernate.event.def.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:113) at org.hibernate.event.def.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:195) at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:76) at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:26) at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:980) at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:353) at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:106) at org.jbpm.persistence.db.DbPersistenceService.close(DbPersistenceService.java:161) ... 3 more thnx View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3963376#... 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