[jbpm-users] [jBPM Users] - NullPointer Exception when starting a process whith Tomcat/S

[hidman78]

Hi,

I'm using  :
Tomcat 6.0
JBPM 4.1
Mysql

I have a NullPointer exception when starting a process when executing this code in my DAO :

		ProcessEngine processEngine = new Configuration().setResource("jbpm.cfg.xml").buildProcessEngine();		
  | 		ExecutionService executionService = processEngine.getExecutionService();
  | 		IdentityService identityService = processEngine.getIdentityService();
  | 		
  | 		ProcessInstance processinstance = executionService.startProcessInstanceByKey("taskformExample"); 


My hibernate config file :

<?xml version="1.0" encoding="utf-8"?>
  | <!DOCTYPE hibernate-configuration
  |     PUBLIC "-//Hibernate/Hibernate Configuration DTD//EN"
  |     "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
  | 
  | <hibernate-configuration>
  | 	<session-factory>
  | 		<!-- Enable Hibernate's automatic session context management -->
  | 
  | 		<property name="hibernate.dialect">org.hibernate.dialect.MySQLInnoDBDialect</property>
  | 		<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
  | 		<property name="hibernate.connection.url">jdbc:mysql://localhost:3306/jbpmdb</property>
  | 		<property name="hibernate.connection.username">root</property>
  | 		<property name="hibernate.connection.password"></property>
  | 		<property name="hibernate.format_sql">true</property>
  | 		<property name="current_session_context_class">thread</property>
  | 		
  | 		<mapping resource="javaclass.beans.Bill.hbm.xml"/>
  | 		<mapping resource="javaclass.beans.Test.hbm.xml" />
  | 		<mapping resource="javaclass.beans.User.hbm.xml" />
  | 		<mapping resource="jbpm.repository.hbm.xml" />
  | 		<mapping resource="jbpm.execution.hbm.xml" />
  | 		<mapping resource="jbpm.history.hbm.xml" />
  | 		<mapping resource="jbpm.task.hbm.xml" />
  | 		<mapping resource="jbpm.identity.hbm.xml" />
  | 		<mapping resource="jbpm.identity.hbm.xml" />
  | 	</session-factory>
  | </hibernate-configuration>

jbpm.cfg
<?xml version="1.0" encoding="UTF-8"?>
  | 
  | <jbpm-configuration>
  | 
  |   <import resource="jbpm.default.cfg.xml" />
  |   <import resource="jbpm.hibernate.cfg.xml" />
  |   <import resource="jbpm.jpdl.cfg.xml" />
  |   <import resource="jbpm.identity.cfg.xml" />
  |   <import resource="jbpm.businesscalendar.cfg.xml" />
  |   <!-- <import resource="jbpm.jobexecutor.cfg.xml" />  -->
  | 
  | </jbpm-configuration>

web.xml
<?xml version="1.0" encoding="ISO-8859-1"?>
  | <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
  |             xmlns="http://java.sun.com/xml/ns/javaee" 
  |             xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" 
  |             xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" 
  |             id="WebApp_ID" version="2.5">
  |             
  |   <display-name>MonApplication</display-name>
  | 
  |   <!-- Configuration de l'action servlet -->
  |   <servlet>
  |     <servlet-name>action</servlet-name>
  |     <servlet-class>org.apache.struts.action.ActionServlet</servlet-class>
  |     <init-param>
  |       <param-name>config</param-name>
  |       <param-value>/WEB-INF/struts-config.xml</param-value>
  |     </init-param>
  |     <load-on-startup>1</load-on-startup>
  |   </servlet>
  |      <servlet-mapping>
  |         <servlet-name>action</servlet-name>
  |         <url-pattern>*.do</url-pattern>
  |     </servlet-mapping>
  | </web-app>

stack variables:
processEngine	JbpmConfiguration  (id=77)	
  | 	authenticatedUserIdThreadLocal	ThreadLocal<T>  (id=481)	
  | 	impl	null	
  | 	isConfigured	true	
  | 	processEngineWireContext	WireContext  (id=484)	
  | 	transactionWireDefinition	WireDefinition  (id=489)	
  | 	userCommandService	null	
  | 	userProvidedEnvironmentObjectsThreadLocal	ThreadLocal<T>  (id=492)

executionService	ExecutionServiceImpl  (id=80)	
  | 	commandService	null		

I think it come from commandService that is null but I don't know why it is null.

Thx

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