New Day, new Problem.

Hi again.

I want du add Users to my JBPM-Engine ...
at the beginning it works fine but now, i have a problem i don't realy understand.

At first the code that works fine:

 IdentitySession identitySession = new IdentitySession( this.getCurrentSession() );
 for (int i = 0; i < entities.length; i++) {
 identitySession.saveEntity( entities );
 }
 this.newTransaction();

And now the code witch produce a Exception:

 for (int i = 0; i < entities.length; i++) {
 System.err.println("-----------> ... "+ this.getCurrentSession());
 IdentitySession identitySession = new IdentitySession( this.getCurrentSession() );
 identitySession.saveEntity( entities );
 this.newTransaction();
 }

The Exception:

Checking 28 named HQL queries
Checking 0 named SQL queries
-----------> ... SessionImpl(PersistenceContext[entityKeys=[],collectionKeys=[]];ActionQueue[insertions=[] updates=[] deletions=[] collectionCreations=[] collectionRemovals=[] collectionUpdates=[]])
-----------> ... SessionImpl(PersistenceContext[entityKeys=[],collectionKeys=[]];ActionQueue[insertions=[] updates=[] deletions=[] collectionCreations=[] collectionRemovals=[] collectionUpdates=[]])
org.jbpm.persistence.JbpmPersistenceException: couldn't commit hibernate session
 at org.jbpm.persistence.db.DbPersistenceService.close(DbPersistenceService.java:172)
 at org.jbpm.svc.Services.close(Services.java:211)
 at org.jbpm.JbpmContext.close(JbpmContext.java:139)
 at medisite.arcaVia.service.ArcaViaController.closeJbpmContext(ArcaViaController.java:559)
 at medisite.arcaVia.service.ArcaViaController.commitAndCloseSession(ArcaViaController.java:377)
 at medisite.arcaVia.service.ArcaViaController.newTransaction(ArcaViaController.java:387)

The other methods i called in this block:

 private Session getCurrentSession(){
 return this.getCurrentJbpmContext().getSession();
 }

 private synchronized void newTransaction() {
 try {
 commitAndCloseSession();
 beginSessionTransaction();
 } catch (Throwable t) {
 throw new RuntimeException(
 "couldn't commit and start new transaction", t);
 }
 }

 public synchronized void commitAndCloseSession() {
 this.closeJbpmContext();
 }

 private void closeJbpmContext() {
 if( this.getCurrentJbpmContext() != null ){
 this.getCurrentJbpmContext().close();
 }
 }

 public JbpmContext getCurrentJbpmContext(){
 return this.getJbpmConfiguration().getCurrentJbpmContext();
 }

 private JbpmConfiguration getJbpmConfiguration() {
 return jbpmConfiguration;
 }

 public synchronized void beginSessionTransaction() {
 if( this.getCurrentJbpmContext() == null ){
 createJbpmContext();
 }
 }

 private void createJbpmContext() {
 getJbpmConfiguration().createJbpmContext();
 }

private static JbpmConfiguration jbpmConfiguration = JbpmConfiguration.getInstance();

The reason i wan't to make a commit after every User is,
that i want to have a method to add Users like this:

 private void addEntity( Entity e ){
 if( e == null )
 return;

 if( this.getCurrentJbpmContext() == null )
 this.beginSessionTransaction();

 IdentitySession identitySession = this.getIdentitySession();
 identitySession.saveEntity( e );

 this.newTransaction();
 }

Any body an idea why i get the exception?

Thank for ur help.