[jboss-user] [jBPM] - Re: JPAWorkingMemoryDbLogger NullPointerException

Csaba K [https://community.jboss.org/people/chabee] created the discussion "Re: JPAWorkingMemoryDbLogger NullPointerException" To view the discussion, visit: https://community.jboss.org/message/800480#800480 -------------------------------------------------------------- *Thank you for the answer!* *I tried to make it (following the tutorial) and I try to use my jbpm-installer/db/persistance.xml, but it seems, that entitymanager does not see it.* *The code:*    KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();         //    kbuilder.add(new ClassPathResource("ruleflow.rf"), ResourceType.DRF);             KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();             kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());             // create a new session             EntityManagerFactory emf = Persistence.createEntityManagerFactory( "org.jbpm.persistence.jpa" ); *I got this error message, if I delete jbpm.test.5.3.Final.jar from the libraries. (I do it, because if I don't Entitymanager uses its persistance.xml).:* log4j:WARN No appenders could be found for logger (org.hibernate.cfg.annotations.Version). log4j:WARN Please initialize the log4j system properly. log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info. Exception in thread "main" javax.persistence.PersistenceException: No Persistence provider for EntityManager named org.jbpm.persistence.jpa     at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:56)     at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:34)     at com.sample.ProcessMain.main(ProcessMain.java:30) *I created also a jBPM.properties file.* *What config file should I change, or what variable should I set?* *Br,* *Csaba * -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/800480#800480] Start a new discussion in jBPM at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]