[jboss-user] [JBoss jBPM] - Re: fault never reaches catchall

[meghanai_99]

I followed the instructions on the wiki page to build JBPM locally and deploy to JBoss. Only difference in my environment is that I use JBoss.4.0.5.GA.

First I had manually copy jbpm-jpdl.jar to default\lib folder. Now I am getting following exception on server start up

12:14:22,182 ERROR [JobExecutorThread] exception in job executor thread. waiting
  |  320000 milliseconds
  | org.hibernate.MappingException: No discriminator found for org.jbpm.bpel.graph.d
  | ef.BpelProcessDefinition. Discriminator is needed when 'single-table-per-hierarc
  | hy' is used and a class has subclasses
  |         at org.hibernate.mapping.SingleTableSubclass.validate(SingleTableSubclas
  | s.java:41)
  |         at org.hibernate.cfg.Configuration.validate(Configuration.java:1026)
  |         at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.jav
  | a:1211)
  |         at org.jbpm.persistence.db.DbPersistenceServiceFactory.getSessionFactory
  | (DbPersistenceServiceFactory.java:91)
  |         at org.jbpm.persistence.db.DbPersistenceService.getSessionFactory(DbPers
  | istenceService.java:94)
  |         at org.jbpm.persistence.db.DbPersistenceService.getSession(DbPersistence
  | Service.java:98)
  |         at org.jbpm.persistence.db.DbPersistenceService.getJobSession(DbPersiste
  | nceService.java:281)
  |         at org.jbpm.JbpmContext.getJobSession(JbpmContext.java:526)
  |         at org.jbpm.job.executor.JobExecutorThread.acquireJobs(JobExecutorThread
  | .java:109)
  |         at org.jbpm.job.executor.JobExecutorThread.run(JobExecutorThread.java:56

Looks like something is misconfigured in one of the hibernate mapping files. Can you please tell me how I can fix this problem? 

Thank you,
Meghana

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