Hi, 
to be honest, I do not know why i am posting question on this forum, since I am 
the one who only answers on them, and I really do not think I will have an 
answer on this one :)
It seems, I feel really desperate :(
So the problem is the following:
I am using Jbpm-jpdl-3.2.3, hibernate 3.2.5, latest spring modules and 
basically use JBPM with Spring, passing the existing sessionFactory to 
jbpmContext.
Everything works fine within JUnit test cases (I extend 
AbstractTransactionalDataSourceSpringContextTests and at the end of each test 
method, I call setComplete() in order to commit in DB instead of default 
rollback.
But the same methods. e.g deploy/undeployProcessDefinition with the same 
process definition do not work under tomcat. 
For example: method undeployProcessDefinition results in 

  | org.hibernate.HibernateException: null index column for collection: 
org.jbpm.graph.def.ProcessDefinition.nodes
  | 
And, by looking in DB, after executed method deployProcessDefinition, it is not 
wonder, since the field:
NODECOLLECTIONINDEX_ in JBPM_NODE table is NULL for every node record.
Just to note, when invoked the same method within JUnit the 
NODECOLLECTIONINDEX_ is NOT NULL.

I read user manual several times, along with the most JIRA issues, (no wonder 
since I am working with JBPM very long time).
Can somebody, possibly can have a clue what can be the reason for this?
Btw, I read Bernd's JIRA issue about the same exception when using 
JtaPersistenceServicefactory, but then he said that it was because of the wrong 
conf. 

It is definitely not my case, at least extensive debug messages confirm that 
everything is initialised properly. I even compared the initialisation code in 
both cases (junit and tomcat) and everything looks just the same and without 
any problem.

NOTE: since I am using JBPM with spring and within a big enterprise 
application, I am not able to send short Unit test, that someone can try 
locally.


Thanks a lot for every hint.
Milan

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