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Re: 0 With jBPM5,the process can not continue successful
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created by <a href="http://community.jboss.org/people/houxiaojun">Xiaojun Hou</a> in <i>jBPM</i> - <a href="http://community.jboss.org/message/607673#607673">View the full discussion</a>
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<div class="jive-rendered-content"><p>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:</p><p>public static void main(String[] args){</p><p>        </p><p>        </p><p>        try {</p><p>            PoolingDataSource ds = new PoolingDataSource();</p><p>            ds.setUniqueName("jdbc/testDS");</p><p>            ds.setClassName("com.mysql.jdbc.jdbc2.optional.MysqlXADataSource");</p><p>            ds.setMaxPoolSize(3);</p><p>            ds.setAllowLocalTransactions(true);</p><p>            ds.getDriverProperties().put("user", "root");</p><p>            ds.getDriverProperties().put("password", "root");</p><p>            ds.getDriverProperties().put("URL", "jdbc:mysql://localhost:3306/jbpm5");</p><p>            ds.init();</p><p>            </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>            // load up the knowledge base</p><p>            KnowledgeBase kbase = readKnowledgeBase();</p><p>            // start a new process instance</p><p>            EntityManagerFactory emf = Persistence</p><p>                    .createEntityManagerFactory("org.jbpm.persistence.jpa");</p><p>            Environment env = KnowledgeBaseFactory.newEnvironment();</p><p>            env.set(EnvironmentName.ENTITY_MANAGER_FACTORY,</p><p>                    emf);</p><p>            env.set(EnvironmentName.TRANSACTION_MANAGER,</p><p>                    TransactionManagerServices.getTransactionManager());</p><p>            // create a new knowledge session that uses JPA to store the runtime</p><p>            // state</p><p>            StatefulKnowledgeSession ksession=null;</p><p>            ksession= JPAKnowledgeService.newStatefulKnowledgeSession(</p><p>                    kbase,</p><p>                    null,</p><p>                    env);</p><p>            </p><p>            JPAWorkingMemoryDbLogger logger = new JPAWorkingMemoryDbLogger(ksession);</p><p>            ksession.getWorkItemManager().registerWorkItemHandler("Human Task", new WSHumanTaskHandler());</p><p>            // start a new process instance</p><p>            Map<String, Object> params = new HashMap<String, Object>();</p><p>            params.put("employee", "krisv");</p><p>            ksession.startProcess("com.sample.evaluation", params);</p><p>            </p><p>            </p><p>           logger.dispose();</p><p>        </p><p>        } catch (Throwable t) {</p><p>            t.printStackTrace();</p><p>        }</p><p>    }</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    private static KnowledgeBase readKnowledgeBase() throws Exception {</p><p>        KnowledgeBuilder kbuilder = KnowledgeBuilderFactory</p><p>                .newKnowledgeBuilder();</p><p>        kbuilder.add(ResourceFactory.newClassPathResource("Evaluation.bpmn"),</p><p>                ResourceType.BPMN2);</p><p>        return kbuilder.newKnowledgeBase();</p><p>    }</p><p>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:</p><p>javax.persistence.PersistenceException: [PersistenceUnit: org.jbpm.persistence.jpa] Unable to build EntityManagerFactory</p><p>    at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:677)</p><p>    at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:126)</p><p>    at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:83)</p><p>    at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:60)</p><p>    at com.sample.ProcessTest.main(ProcessTest.java:67)</p><p>Caused by: org.hibernate.HibernateException: Could not obtain BTM transaction manager instance</p><p>    at org.hibernate.transaction.BTMTransactionManagerLookup.getTransactionManager(BTMTransactionManagerLookup.java:50)</p><p>    at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:357)</p><p>    at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1327)</p><p>    at org.hibernate.cfg.AnnotationConfiguration.buildSessionFactory(AnnotationConfiguration.java:867)</p><p>    at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:669)</p><p>    ... 4 more</p><p>Caused by: java.lang.reflect.InvocationTargetException</p><p>    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</p><p>    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)</p><p>    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)</p><p>    at java.lang.reflect.Method.invoke(Method.java:597)</p><p>    at org.hibernate.transaction.BTMTransactionManagerLookup.getTransactionManager(BTMTransactionManagerLookup.java:47)</p><p>    ... 8 more</p><p>Caused by: bitronix.tm.utils.InitializationException: cannot open disk journal</p><p>    at bitronix.tm.BitronixTransactionManager.<init>(BitronixTransactionManager.java:59)</p><p>    at bitronix.tm.TransactionManagerServices.getTransactionManager(TransactionManagerServices.java:43)</p><p>    ... 13 more</p><p>Caused by: java.io.IOException:The process cannot access the file because another process has locked a portion of the file</p><p>    at java.io.RandomAccessFile.read(Native Method)</p><p>    at java.io.RandomAccessFile.readInt(RandomAccessFile.java:720)</p><p>    at bitronix.tm.journal.TransactionLogHeader.<init>(TransactionLogHeader.java:77)</p><p>    at bitronix.tm.journal.TransactionLogAppender.<init>(TransactionLogAppender.java:50)</p><p>    at bitronix.tm.journal.DiskJournal.open(DiskJournal.java:132)</p><p>    at bitronix.tm.BitronixTransactionManager.<init>(BitronixTransactionManager.java:46)</p><p>    ... 14 more</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I do not know what happened above,can you help me out?Waiting for your response,thank you!!</p></div>
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