Hi,
I am experiencing the same issue here. I haven't found the solution yet (I
might try the posted solution here) but wanted to post the problem for future
reference...
the error I am getting is the following:
17:53:07,343 [http-8080-4] INFO ContextAdvice : ----------> ContextAdvice in
action, opening ctx
| 17:53:21,234 [http-8080-4] DEBUG JbpmContextInfo : creating jbpm context
with service factories '[tx, message, scheduler, logging, persistence,
authentication]'
| 17:53:21,250 [http-8080-4] DEBUG JbpmContext : creating
org.jbpm.jbpmcont...@93f17f
| 17:53:21,250 [http-8080-4] INFO ContextAdvice : --------------> reusing
existing jbpmContext: org.jbpm.jbpmcont...@93f17f
| 17:53:26,281 [http-8080-4] DEBUG DbPersistenceServiceFactory : creating
persistence service
| 17:53:26,296 [http-8080-4] DEBUG DbPersistenceService : creating hibernate
session
| 17:53:26,296 [http-8080-4] DEBUG DbPersistenceService : beginning hibernate
transaction
| 17:53:31,343 [http-8080-4] DEBUG DbPersistenceService : begun hibernate
transaction org.hibernate.transaction.jdbctransact...@537c91
| 17:53:31,531 [http-8080-4] INFO ContextAdvice : ----------> ContextAdvice
in action, closing ctx
| 17:53:51,562 [http-8080-4] DEBUG JbpmContext : closing jbpmContext
org.jbpm.jbpmcont...@93f17f
| 17:53:51,578 [http-8080-4] DEBUG Services : closing service 'persistence':
org.jbpm.persistence.db.dbpersistenceserv...@362a7b
| 17:53:51,593 [http-8080-4] DEBUG DbPersistenceService : committing
hibernate transaction org.hibernate.transaction.jdbctransact...@537c91
| 17:53:51,625 [http-8080-4] DEBUG DbPersistenceService : closing hibernate
session
| 17:53:51,640 [http-8080-4] DEBUG Services : closing service 'tx':
org.jbpm.tx.txserv...@384d34
| 17:53:51,812 [http-8080-4] ERROR LoggingSession :
org.hibernate.SessionException: Session is closed!
And here is a bit of explanation.
I have a ContextAdvice Object that opens/closes the context when you
enter/leave the service logic.
package com.ea.dc.jbpm.context;
|
| import java.lang.reflect.Method;
|
| import org.apache.log4j.Logger;
| import org.jbpm.JbpmConfiguration;
| import org.jbpm.JbpmContext;
| import org.springframework.aop.AfterReturningAdvice;
| import org.springframework.aop.MethodBeforeAdvice;
|
| /** Class used to intercept calls to services and initialize the jbpmContext
| * in order to make it transparent to the coder.
| *
| * @author lucas.gonzalezp
| */
| public class ContextAdvice
| implements MethodBeforeAdvice, AfterReturningAdvice {
|
| /** The class logger. */
| private static final Logger LOGGER =
Logger.getLogger(ContextAdvice.class);
|
| /** jbpm configuration. */
| private JbpmConfiguration jbpmConfiguration = null;
|
| /** Opens the context. */
| public void before(Method method, Object[] args, Object target)
| throws Throwable {
| LOGGER.info("----------> ContextAdvice in action, opening ctx");
| getContext();
| }
|
|
| /** Closes the context. */
| public void afterReturning(Object returnValue, Method method,
| Object[] args, Object target) throws Throwable {
| LOGGER.info("----------> ContextAdvice in action, closing ctx");
|
| JbpmContext jbpmContext = jbpmConfiguration.getCurrentJbpmContext();
| if (jbpmContext != null) {
| jbpmContext.close();
| } else {
| // TODO: throw exception?
| LOGGER.fatal("----------> CONTEXT NOT FOUND, SOMEONE ELSE CLOSED IT");
| }
| }
|
| /** Looks for a current JBPMContext. If it does not exists it will create
| * a new one.
| * @return a jbpm context
| */
| private JbpmContext getContext() {
| // Lookup the pojo persistence context-builder that is configured above
| JbpmContext jbpmContext = jbpmConfiguration.getCurrentJbpmContext();
|
| if (jbpmContext == null) {
| jbpmContext = jbpmConfiguration.createJbpmContext();
| LOGGER.info("--------------> creating new jbpmContext: "
| + jbpmContext);
| }
| return jbpmContext;
| }
|
| /** Sets the jbpmConfiguration for this bean.
| * @param config the jbpm configuration to set
| */
| public void setJbpmConfiguration(final JbpmConfiguration config) {
| jbpmConfiguration = config;
| }
| }
|
and here is one of the failing methods:
public List<JobDTO> getJobs() {
| List<JobDTO> result = new ArrayList<JobDTO>();
|
| // Lookup the pojo persistence context-builder that is configured above
| JbpmContext jbpmContext = getContext();
|
| // let's obtain a graph session to get the process instances
| GraphSession graphSession = jbpmContext.getGraphSession();
| // now let's get the process instance
| ProcessDefinition procDef = graphSession.findLatestProcessDefinition(
| WorkFlowServiceImpl.PROCESS_NAME);
|
| List<ProcessInstance> instances =
| graphSession.findProcessInstances(procDef.getId());
|
| for (Iterator iterator = instances.iterator(); iterator.hasNext();) {
| ProcessInstance processInstance = (ProcessInstance) iterator.next();
| result.add(populateJob(processInstance));
| }
|
| return result;
| }
|
So I understand that ContextAdvice closes the jbpmContext --> HibernateSession
and then the LogSession throws the error.
Is it possible to flush/close the LogSession before the context is closed?
thanks,
Lucas
- I am using springmodules 0.8a
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