[jboss-user] [jBPM] - Re: 0 With jBPM5, the process can not continue successful

[Xiaojun Hou]

Xiaojun Hou [http://community.jboss.org/people/houxiaojun] created the discussion

"Re: 0 With jBPM5,the process can not continue successful"

To view the discussion, visit: http://community.jboss.org/message/607673#607673

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I finished the persistence configurations according to the user guide of jbpm5.And my database has the sessioninfo,processinstanceinfo tables ,etc.Below is my test code:
public static void main(String[] args){


        try {
            PoolingDataSource ds = new PoolingDataSource();
            ds.setUniqueName("jdbc/testDS");
            ds.setClassName("com.mysql.jdbc.jdbc2.optional.MysqlXADataSource");
            ds.setMaxPoolSize(3);
            ds.setAllowLocalTransactions(true);
            ds.getDriverProperties().put("user", "root");
            ds.getDriverProperties().put("password", "root");
            ds.getDriverProperties().put("URL", "jdbc:mysql://localhost:3306/jbpm5");
            ds.init();


            // load up the knowledge base
            KnowledgeBase kbase = readKnowledgeBase();
            // start a new process instance
            EntityManagerFactory emf = Persistence
                    .createEntityManagerFactory("org.jbpm.persistence.jpa");
            Environment env = KnowledgeBaseFactory.newEnvironment();
            env.set(EnvironmentName.ENTITY_MANAGER_FACTORY,
                    emf);
            env.set(EnvironmentName.TRANSACTION_MANAGER,
                    TransactionManagerServices.getTransactionManager());
            // create a new knowledge session that uses JPA to store the runtime
            // state
            StatefulKnowledgeSession ksession=null;
            ksession= JPAKnowledgeService.newStatefulKnowledgeSession(
                    kbase,
                    null,
                    env);

            JPAWorkingMemoryDbLogger logger = new JPAWorkingMemoryDbLogger(ksession);
            ksession.getWorkItemManager().registerWorkItemHandler("Human Task", new WSHumanTaskHandler());
            // start a new process instance
            Map<String, Object> params = new HashMap<String, Object>();
            params.put("employee", "krisv");
            ksession.startProcess("com.sample.evaluation", params);


           logger.dispose();

        } catch (Throwable t) {
            t.printStackTrace();
        }
    }

    private static KnowledgeBase readKnowledgeBase() throws Exception {
        KnowledgeBuilder kbuilder = KnowledgeBuilderFactory
                .newKnowledgeBuilder();
        kbuilder.add(ResourceFactory.newClassPathResource("Evaluation.bpmn"),
                ResourceType.BPMN2);
        return kbuilder.newKnowledgeBase();
    }
The first time i run the code,the processinstance and the tasks are created successfully.But when i run it second time ,exception was occured just like this:
javax.persistence.PersistenceException: [PersistenceUnit: org.jbpm.persistence.jpa] Unable to build EntityManagerFactory
    at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:677)
    at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:126)
    at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:83)
    at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:60)
    at com.sample.ProcessTest.main(ProcessTest.java:67)
Caused by: org.hibernate.HibernateException: Could not obtain BTM transaction manager instance
    at org.hibernate.transaction.BTMTransactionManagerLookup.getTransactionManager(BTMTransactionManagerLookup.java:50)
    at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:357)
    at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1327)
    at org.hibernate.cfg.AnnotationConfiguration.buildSessionFactory(AnnotationConfiguration.java:867)
    at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:669)
    ... 4 more
Caused by: java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.hibernate.transaction.BTMTransactionManagerLookup.getTransactionManager(BTMTransactionManagerLookup.java:47)
    ... 8 more
Caused by: bitronix.tm.utils.InitializationException: cannot open disk journal
    at bitronix.tm.BitronixTransactionManager.<init>(BitronixTransactionManager.java:59)
    at bitronix.tm.TransactionManagerServices.getTransactionManager(TransactionManagerServices.java:43)
    ... 13 more
Caused by: java.io.IOException:The process cannot access the file because another process has locked a portion of the file
    at java.io.RandomAccessFile.read(Native Method)
    at java.io.RandomAccessFile.readInt(RandomAccessFile.java:720)
    at bitronix.tm.journal.TransactionLogHeader.<init>(TransactionLogHeader.java:77)
    at bitronix.tm.journal.TransactionLogAppender.<init>(TransactionLogAppender.java:50)
    at bitronix.tm.journal.DiskJournal.open(DiskJournal.java:132)
    at bitronix.tm.BitronixTransactionManager.<init>(BitronixTransactionManager.java:46)
    ... 14 more


I do not know what happened above,can you help me out?Waiting for your response,thank you!!
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