[jboss-dev-forums] [Design of JBoss jBPM] - Exception while trying to instance process definition

[anu123suya]

My processdefintion xml file got successfully deployed into the server. Could see an entry for this process in processdefinition table also.

 When i try to run the sample application which tries to create an instance of the process, I am getting an Hibernate exception.

below is the code sample and exception . Can anyone help me to resolve this issue.

Thanks




JbpmConfiguration jbpmConfiguration = JbpmConfiguration.getInstance(); 
JbpmContext jbpmContext = jbpmConfiguration.createJbpmContext(); 

try 
{ 
GraphSession graphSession = jbpmContext.getGraphSession(); 
ProcessDefinition processDefinition = graphSession.findLatestProcessDefinition("LeaveApproval"); 
ProcessInstance processInstance = new ProcessInstance(processDefinition); 
Token token = processInstance.getRootToken(); 
token.signal(); 

jbpmContext.save(processInstance); 
} 
finally 
{ 

jbpmContext.close(); 
}  
    


Exception trace is:
------------------------------

2006-12-08 18:33:39,593 DEBUG [org.hibernate.persister.collection.AbstractCollectionPersister] Inserting collection: [org.jbpm.graph.exe.ProcessInstance.instances#22]
2006-12-08 18:33:39,593 DEBUG [org.hibernate.persister.collection.AbstractCollectionPersister] collection was empty
2006-12-08 18:33:39,593 DEBUG [org.hibernate.transaction.JDBCTransaction] re-enabling autocommit
2006-12-08 18:33:39,593 DEBUG [org.hibernate.transaction.JDBCTransaction] committed JDBC Connection
2006-12-08 18:33:39,593 DEBUG [org.hibernate.jdbc.ConnectionManager] aggressively releasing JDBC connection
2006-12-08 18:33:39,593 DEBUG [org.hibernate.jdbc.ConnectionManager] closing JDBC connection [ (open PreparedStatements: 0, globally: 0) (open ResultSets: 0, globally: 0)]
2006-12-08 18:33:39,593 DEBUG [org.jbpm.persistence.db.DbPersistenceService] closing hibernate session
2006-12-08 18:33:39,593 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[localhost].[/test].[jsp]] Servlet.service() for servlet jsp threw exception
org.hibernate.HibernateException: null index column for collection: org.jbpm.graph.def.ProcessDefinition.definitions
	at org.hibernate.persister.collection.AbstractCollectionPersister.readIndex(AbstractCollectionPersister.java:652)
	at org.hibernate.collection.PersistentMap.readFrom(PersistentMap.java:222)
	at org.hibernate.loader.Loader.readCollectionElement(Loader.java:994)
	at org.hibernate.loader.Loader.readCollectionElements(Loader.java:635)
	at org.hibernate.loader.Loader.getRowFromResultSet(Loader.java:579)
	at org.hibernate.loader.Loader.doQuery(Loader.java:689)
	at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:223)
	at org.hibernate.loader.Loader.loadCollection(Loader.java:1916)
	at org.hibernate.loader.collection.CollectionLoader.initialize(CollectionLoader.java:71)
	at org.hibernate.persister.collection.AbstractCollectionPersister.initialize(AbstractCollectionPersister.java:520)
	at org.hibernate.event.def.DefaultInitializeCollectionEventListener.onInitializeCollection(DefaultInitializeCollectionEventListener.java:60)
	at org.hibernate.impl.SessionImpl.initializeCollection(SessionImpl.java:1593)
	at org.hibernate.collection.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:344)
	at org.hibernate.collection.AbstractPersistentCollection.read(AbstractPersistentCollection.java:86)
	at org.hibernate.collection.PersistentMap.values(PersistentMap.java:198)
	at org.jbpm.graph.exe.ProcessInstance.(ProcessInstance.java:103)
	at org.apache.jsp.InvokeProcess_jsp._jspService(InvokeProcess_jsp.java:66)
	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
	at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
	at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
	at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
	at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
	at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
	at java.lang.Thread.run(Thread.java:534)






View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3992234#3992234

Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3992234