problem in making a simple human task
aminhosseiny Feb 6, 2012 9:58 AMi try to do something that this url mentioned it...but unfortunatley these exception come to me!
my code
public class ProcessTest { public static final void main(String[] args) { try { startUp(); KnowledgeBase kbase = readKnowledgeBase(); line 31: StatefulKnowledgeSession ksession = JBPMHelper.newStatefulKnowledgeSession(kbase); ksession.startProcess("human_process"); System.out.println("Process started ..."); } catch (Throwable t) { t.printStackTrace(); } } private static KnowledgeBase readKnowledgeBase() throws Exception { KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder(); kbuilder.add(ResourceFactory.newClassPathResource("sample2.bpmn"), ResourceType.BPMN2); return kbuilder.newKnowledgeBase(); } private static void startUp() { JBPMHelper.startH2Server(); JBPMHelper.setupDataSource(); }
the exceptions :
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:52)
at org.jbpm.test.JBPMHelper.loadStatefulKnowledgeSession(JBPMHelper.java:138)
at org.jbpm.test.JBPMHelper.newStatefulKnowledgeSession(JBPMHelper.java:127)
at com.sample.ProcessTest.main(ProcessTest.java:31)
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:367)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1341)
at org.hibernate.cfg.AnnotationConfiguration.buildSessionFactory(AnnotationConfiguration.java:867)
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:669)
... 5 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)
... 9 more
Caused by: bitronix.tm.utils.InitializationException: cannot open disk journal
at bitronix.tm.BitronixTransactionManager.<init>(BitronixTransactionManager.java:75)
at bitronix.tm.TransactionManagerServices.getTransactionManager(TransactionManagerServices.java:62)
... 14 more
Caused by: java.io.IOException: transaction log file btm2.tlog is locked. Is another instance already running?
at bitronix.tm.journal.TransactionLogAppender.<init>(TransactionLogAppender.java:72)
at bitronix.tm.journal.DiskJournal.open(DiskJournal.java:152)
at bitronix.tm.BitronixTransactionManager.<init>(BitronixTransactionManager.java:62)
... 15 more