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how to use jbpm5 in web app

created by losfa jon in jBPM - View the full discussion

i have a question when i use jbpm5 in web app

i user jboss5.1GA and mysql5.1

i have config a database on jboss and i can use it on my app like it

emf = Persistence.createEntityManagerFactory( "org.jbpm.persistence.jpa1" );

but when i

JPAKnowledgeService.newStatefulKnowledgeSession(kbase, config, env);

i have a example

10:46:46,464 WARN [JtaTransactionManager] Participating in existing JTA transaction, but no JTA TransactionManager or TransactionSychronizationRegistry available:

java.lang.NullPointerException

at org.drools.persistence.jta.JtaTransactionManager.registerTransactionSynchronization(JtaTransactionManager.java:221)

at org.drools.persistence.SingleSessionCommandService.registerRollbackSync(SingleSessionCommandService.java:333)

at org.drools.persistence.SingleSessionCommandService.<init>(SingleSessionCommandService.java:123)

at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)

at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)

at java.lang.reflect.Constructor.newInstance(Constructor.java:513)

at org.drools.persistence.jpa.KnowledgeStoreServiceImpl.buildCommanService(KnowledgeStoreServiceImpl.java:116)

at org.drools.persistence.jpa.KnowledgeStoreServiceImpl.newStatefulKnowledgeSession(KnowledgeStoreServiceImpl.java:54)

at org.drools.persistence.jpa.JPAKnowledgeService.newStatefulKnowledgeSession(JPAKnowledgeService.java:122)

at com.sample.test2.createKnowledgeSession(test2.java:168)

at action.TaskListAction.index(TaskListAction.java:51)

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.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:270)

at org.apache.struts.actions.DispatchAction.execute(DispatchAction.java:187)

at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)

at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)

at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)

at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:638)

at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:444)

at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:382)

at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:310)

at org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1085)

at org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:398)

at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:241)

at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)

at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235)

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)

at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)

at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)

at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)

at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)

at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)

at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)

at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829)

at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:598)

at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)

at java.lang.Thread.run(Thread.java:619)

10:46:47,229 WARN [RequestProcessor] Unhandled Exception thrown: class java.lang.IllegalStateException

10:46:47,229 ERROR [[action]] Servlet.service() for servlet action threw exception

java.lang.NullPointerException

at org.drools.persistence.SingleSessionCommandService.<init>(SingleSessionCommandService.java:138)