[rules-dev] Drools Flow Persistence issue

Hi, I am new to drools and drools flow and able successfully create an flow using Knowldebase.newStatefulKnowledgeSession();. The same i have tried configuring persistence service via JPAKnowledgeService using H2DB as specified in section 5.1.3 drools flow documentation https://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/t... getting an exception from SingleSessionCommandService during the user transaction context lookup since it return null ctx.lookup( "java:comp/UserTransaction".); The project setup is Spring , Hibernate and Drools with H2db base. Also find the persistence.xml that i have used <?xml version="1.0" encoding="UTF-8" standalone="yes"?> <persistence version="1.0" xsi:schemaLocation= "http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd http://java.sun.com/xml/ns/persistence/orm http://java.sun.com/xml/ns/persistence/orm_1_0.xsd" xmlns:orm="http://java.sun.com/xml/ns/persistence/orm" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/persistence"> <persistence-unit name="org.drools.persistence.jpa" transaction-type="JTA"> <provider>org.hibernate.ejb.HibernatePersistence</provider> <jta-data-source>processInstanceDS</jta-data-source> <class>org.drools.persistence.session.SessionInfo</class> <class>org.drools.persistence.processinstance.ProcessInstanceInfo</class> <class>org.drools.persistence.processinstance.ProcessInstanceEventInfo</class> <class>org.drools.persistence.processinstance.WorkItemInfo</class> <properties> <property name="hibernate.dialect" value="org.hibernate.dialect.H2Dialect"/> <property name="hibernate.max_fetch_depth" value="3"/> <property name="hibernate.hbm2ddl.auto" value="update"/> <property name="hibernate.show_sql" value="true"/> <property name="hibernate.transaction.manager_lookup_class" value="org.hibernate.transaction.BTMTransactionManagerLookup"/> </properties> </persistence-unit> </persistence> Please provide your inputs on the persistence usage and also share with me any sample project if you have done earlier. thanks Prem -- View this message in context: http://www.nabble.com/Drools-Flow-Persistence-issue-tp25577781p25577781.html Sent from the drools - dev mailing list archive at Nabble.com.