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Re: NullPointerException when trying to configure jbpm5 with Spring 3.0 and Persistence
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created by <a href="https://community.jboss.org/people/liliana.iovanovici">liliana.iovanovici</a> in <i>jBPM</i> - <a href="https://community.jboss.org/message/719388#719388">View the full discussion</a>
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<div class="jive-rendered-content"><p>I was trying to configure persistence in other way, using Bitronix. My spring-conf.xml file is:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>          <bean id="transactionManager"</p><p>                    class="org.springframework.transaction.jta.JtaTransactionManager"></p><p>                    <property name="transactionManager" ref="bitronixTransactionManager" /></p><p>                    <property name="userTransaction" ref="bitronixTransactionManager" /></p><p>          </bean></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>          <bean id="bitronixTransactionManager" factory-method="getTransactionManager"</p><p>                    class="bitronix.tm.TransactionManagerServices" depends-on="transactionManager"</p><p>                    destroy-method="shutdown" /></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>          <bean id="entityManagerFactory"</p><p>                    class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean"></p><p>                    <property name="persistenceUnitName" value="oracle" /></p><p>                    <property name="persistenceXmlLocation" value="classpath:META-INF/persistence.xml" /></p><p>                    <property name="jpaVendorAdapter"></p><p>                              <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter"></p><p>                                        <property name="databasePlatform" value="org.hibernate.dialect.Oracle10gDialect" /></p><p>                                        <property name="showSql" value="true" /></p><p>                                        <property name="generateDdl" value="false" /></p><p>                              </bean></p><p>                    </property></p><p>          </bean></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>          <jbpm:kbase id="kbase"></p><p>                    <jbpm:resources></p><p>                              <jbpm:resource type="BPMN2" source="classpath:Hi.bpmn" /></p><p>                    </jbpm:resources></p><p>          </jbpm:kbase></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>          <jbpm:ksession id="persistentKSession" type="stateful"</p><p>                    kbase="kbase"></p><p>                    <jbpm:configuration></p><p>                              <jbpm:jpa-persistence></p><p>                                        <jbpm:transaction-manager ref="transactionManager" /></p><p>                                        <jbpm:entity-manager-factory ref="entityManagerFactory" /></p><p>                              </jbpm:jpa-persistence></p><p>                    </jbpm:configuration></p><p>          </jbpm:ksession></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><strong>And persistence.xml file is:</strong></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p> <persistence-unit name="oracle" transaction-type="JTA"></p><p>    <provider>org.hibernate.ejb.HibernatePersistence</provider></p><p>    <jta-data-source></jta-data-source></p><p>    <mapping-file>META-INF/JBPMorm.xml</mapping-file></p><p>    <class>org.drools.persistence.info.SessionInfo</class></p><p>    <class>org.jbpm.persistence.processinstance.ProcessInstanceInfo</class></p><p>    <class>org.drools.persistence.info.WorkItemInfo</class></p><p>    </p><p>     <properties></p><p>      <property name="hibernate.dialect" value="org.hibernate.dialect.Oracle10gDialect"/></p><p>      <property name="hibernate.connection.driver_class" value="oracle.jdbc.OracleDriver"/></p><p>      <property name="hibernate.connection.url" value="jdbc:oracle:thin:@localhost:1521:xe" /></p><p>      <property name="hibernate.connection.username" value="apsfsample"/></p><p>      <property name="hibernate.connection.password" value="apsf"/></p><p>      <property name="hibernate.connection.autocommit" value="false" /></p><p>      <property name="hibernate.max_fetch_depth" value="3"/></p><p>      <property name="hibernate.hbm2ddl.auto" value="create" /></p><p>      <property name="hibernate.show_sql" value="true" /></p><p>      <property name="hibernate.transaction.manager_lookup_class" value="org.hibernate.transaction.BTMTransactionManagerLookup"/></p><p>    </properties></p><p>    </p><p>  </persistence-unit></p><p></persistence></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I <strong>steel </strong>got an exeption. It seems that the session can be commited in database. The error is:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>11:14:25,437 ERROR SingleSessionCommandService:313 - Could not commit session</p><p>java.lang.NullPointerException</p><p>          at org.drools.persistence.SingleSessionCommandService.<init>(SingleSessionCommandService.java:125)</p><p>          at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)</p><p>          at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)</p><p>          at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)</p><p>          at java.lang.reflect.Constructor.newInstance(Constructor.java:513)</p><p>          at org.drools.persistence.jpa.KnowledgeStoreServiceImpl.buildCommanService(KnowledgeStoreServiceImpl.java:116)</p><p>          at org.drools.persistence.jpa.KnowledgeStoreServiceImpl.newStatefulKnowledgeSession(KnowledgeStoreServiceImpl.java:54)</p><p>          at org.drools.persistence.jpa.JPAKnowledgeService.newStatefulKnowledgeSession(JPAKnowledgeService.java:122)</p><p>          at org.drools.container.spring.beans.StatefulKnowledgeSessionBeanFactory.internalAfterPropertiesSet(StatefulKnowledgeSessionBeanFactory.java:82)</p><p>          at org.drools.container.spring.beans.AbstractKnowledgeSessionBeanFactory.afterPropertiesSet(AbstractKnowledgeSessionBeanFactory.java:108)</p><p>          at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1460)</p><p>          at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1400)</p><p>          at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:513)</p><p>          at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:450)</p><p>          at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:290)</p><p>          at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)</p><p>          at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:287)</p><p>          at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:189)</p><p>          at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:545)</p><p>          at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:871)</p><p>          at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:423)</p><p>          at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)</p><p>          at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83)</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Does anybody know this error? </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Thanks.</p></div>
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