Samrat Roy [https://community.jboss.org/people/whizkid.samrat] created the discussion "jBpm 5.2 persistence problem - Oracle - Unknown entity: org.drools.persistence.info.SessionInfo" To view the discussion, visit: https://community.jboss.org/message/717687#717687 -------------------------------------------------------------- Hi , I am setting up jBpm 5.2 with persistence for the first time and facing a LoT of issues. I am using jpm 5.2 with Spring 3.0 and Hibernate 3.5.6 on jBoss AS 7 server. We all know that jBoss AS 7 comes with Hibernate 4 as the default hibernate , but I need to use the Hibernate 3 in my project so I installed hibernate 3 as a module in as7 and that is working as expected . I excluded Hibernate 4 with jboss-deployment-structure.xml and added org.jboss.as.jpa.hibernate:3 as a dependency in manifest.mf [refer http://badr-elhouari.blogspot.in/2011/10/how-to-use-hibernate-3-as-jpa-pr... here how I added hibernate:3 as a module in AS7] That said , I have configured the entire knowledge base and knowledge session in spring so that I dont have to write code for that - Taking tips from drools - integration module and by using drools-grid-impl jar and drools-spring jar. Drools-grid jar contains a persistence.xml which used in memory DB [h2] so I modified the xml to use oracle and hibernate 3 instead. Here is my *application context*:     <bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean" p:dataSource-ref="datasource">      <property name="jpaVendorAdapter">          <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter" p:database="${jpa.database}" p:showSql="${jpa.showSql}"/>      </property>      <property name="persistenceXmlLocation" value="classpath:META-INF/persistence.xml"/>     </bean>    <bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">         <property name="entityManagerFactory" ref="entityManagerFactory" />     </bean>     <tx:annotation-driven transaction-manager="transactionManager"/>     <bean class="org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor" />      <!-- First: declare JBPM JPA Session with a process definition -->   <jbpm:kbase id="kbase">     <jbpm:resources>        <jbpm:resource type="BPMN2" source="classpath:LeaveFlow.bpmn" />     </jbpm:resources>   </jbpm:kbase>   <jbpm:ksession id="ksession" type="stateful" kbase="kbase">     <jbpm:configuration>       <jbpm:jpa-persistence>         <jbpm:entity-manager-factory ref="entityManagerFactory"/>         <jbpm:transaction-manager ref="transactionManager"/>       </jbpm:jpa-persistence>     </jbpm:configuration>   </jbpm:ksession>   <!-- Declare a TaskServer -->   <bean class="org.jbpm.task.service.TaskService" id="taskService">     <constructor-arg ref="entityManagerFactory"/>     <constructor-arg>       <bean class="org.drools.SystemEventListenerFactory" factory-method="getSystemEventListener"/>     </constructor-arg>   </bean>   <bean class="org.jbpm.task.service.mina.MinaTaskServer" id="taskServer">     <constructor-arg ref="taskService"/>     <constructor-arg><value>${jbpm.task.server.port}</value></constructor-arg>   </bean>   <!-- And start TaskServer on the configured port -->   <bean class="java.lang.Thread" id="taskServerThread" init-method="start">     <constructor-arg ref="taskServer"/>   </bean>   <!-- Declare a TaskClient -->   <bean class="org.jbpm.task.service.mina.MinaTaskClientConnector" id="taskClientConnector">     <constructor-arg value="taskClient"/>     <constructor-arg>       <bean class="org.jbpm.task.service.mina.MinaTaskClientHandler">         <constructor-arg>           <bean class="org.drools.SystemEventListenerFactory" factory-method="getSystemEventListener"/>         </constructor-arg>       </bean>     </constructor-arg>   </bean>   <bean class="org.jbpm.task.service.TaskClient" id="taskClient">     <constructor-arg ref="taskClientConnector"/>   </bean>   <!-- Declare a HumanTaskHandler -->   <bean class="org.jbpm.task.service.AsyncTaskServiceWrapper" id="humanTaskClient">     <constructor-arg ref="taskClient"/>   </bean>   <!-- It uses previously created TaskClient -->   <bean class="org.jbpm.process.workitem.wsht.SyncWSHumanTaskHandler" id="humanTaskHandler">     <constructor-arg ref="humanTaskClient"/>     <constructor-arg ref="ksession"/>   </bean>   <!-- Configure its connection to the local server -->   <bean class="org.springframework.beans.factory.config.MethodInvokingFactoryBean" depends-on="humanTaskHandler" id="setConnection">     <property name="targetObject" ref="humanTaskHandler"/>     <property name="targetMethod" value="setConnection"/>     <property name="arguments">       <list>         <value>${jbpm.task.client.address}</value>         <value>${jbpm.task.client.port}</value>       </list>     </property>   </bean>   <!-- And connect HumanTaskHandler (implicit TaskClient connection) -->   <bean class="org.springframework.beans.factory.config.MethodInvokingFactoryBean" depends-on="setConnection">     <property name="targetObject" ref="humanTaskHandler"/>     <property name="targetMethod" value="connect"/>   </bean>   <!-- Finnaly, register HumanTaskHandler in the session -->   <bean factory-bean="ksession" factory-method="getWorkItemManager" id="workItemManager"/>   <bean class="org.springframework.beans.factory.config.MethodInvokingFactoryBean">     <property name="targetObject" ref="workItemManager"/>     <property name="targetMethod" value="registerWorkItemHandler"/>     <property name="arguments">       <list>         <value>Human Task</value>         <ref bean="humanTaskHandler"/>       </list>     </property>   </bean> The Exception I am getting while server startup is : 20:07:26,443 ERROR [org.drools.persistence.SingleSessionCommandService] (MSC service thread 1-3) Could not commit session: java.lang.IllegalArgumentException: *Unknown entity: org.drools.persistence.info.SessionInfo*     at org.hibernate.ejb.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:671) [hibernate-entitymanager-3.5.6-Final.jar:3.5.6-Final]     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [:1.6.0_23]     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) [:1.6.0_23]     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [:1.6.0_23]     at java.lang.reflect.Method.invoke(Method.java:597) [:1.6.0_23]     at org.springframework.orm.jpa.ExtendedEntityManagerCreator$ExtendedEntityManagerInvocationHandler.invoke(ExtendedEntityManagerCreator.java:365) [org.springframework.orm-3.0.5.RELEASE.jar:]     at $Proxy32.persist(Unknown Source)    at org.drools.persistence.jpa.JpaPersistenceContext.persist(JpaPersistenceContext.java:17) [drools-persistence-jpa-5.3.1.Final.jar:]     at org.drools.persistence.SingleSessionCommandService.<init>(SingleSessionCommandService.java:152) [drools-persistence-jpa-5.3.1.Final.jar:]     at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) [:1.6.0_23]     at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) [:1.6.0_23]     at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) [:1.6.0_23]     at java.lang.reflect.Constructor.newInstance(Constructor.java:513) [:1.6.0_23]     at org.drools.persistence.jpa.KnowledgeStoreServiceImpl.buildCommandService(KnowledgeStoreServiceImpl.java:129) [drools-persistence-jpa-5.3.1.Final.jar:]     at org.drools.persistence.jpa.KnowledgeStoreServiceImpl.newStatefulKnowledgeSession(KnowledgeStoreServiceImpl.java:67) [drools-persistence-jpa-5.3.1.Final.jar:]     at org.drools.persistence.jpa.JPAKnowledgeService.newStatefulKnowledgeSession(JPAKnowledgeService.java:122) [knowledge-api-5.3.1.Final.jar:]     at org.drools.container.spring.beans.StatefulKnowledgeSessionBeanFactory.internalAfterPropertiesSet(StatefulKnowledgeSessionBeanFactory.java:85) [drools-spring-5.3.0.Final.jar:]     at org.drools.container.spring.beans.AbstractKnowledgeSessionBeanFactory.afterPropertiesSet(AbstractKnowledgeSessionBeanFactory.java:123) [drools-spring-5.3.0.Final.jar:]     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1477) [org.springframework.beans-3.0.5.RELEASE.jar:]    ....... This is driving me nuts as I have all the required jars in my classPath. Please help !!! I am attaching important config files : Application Ctxt of my application , MANIFEST.MF of my application , persistence.xml from my application and the persistence.xml which I modified in drools-grid jar -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/717687#717687] Start a new discussion in jBPM at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]