[jboss-user] [jBPM] - Re: jBPM5.1 : History Information and Reporting using API

[Sandip Bhoi]

Sandip Bhoi [http://community.jboss.org/people/sandip.bhoi] created the discussion

"Re: jBPM5.1 : History Information and Reporting using API"

To view the discussion, visit: http://community.jboss.org/message/638221#638221

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Hi Demian,

Sorry for being so dump  :(  

What could be the wrong with following code. I am getting NPE.

public void init() throws ServletException {

        super.init();

        try {

            UserTransaction ut = (UserTransaction) new InitialContext().lookup("java:comp/UserTransaction");
            ut.begin();
            StatefulKnowledgeSession ksession = JbpmAPIUtil.getSession();

            /* Create the knowledge base */

            JPAWorkingMemoryDbLogger  logger = new JPAWorkingMemoryDbLogger (ksession);
            JPAProcessInstanceDbLog  processInstaceLogger = new JPAProcessInstanceDbLog (ksession.getEnvironment());

            CommandBasedWSHumanTaskHandler taskHandler = new CommandBasedWSHumanTaskHandler(ksession);
            ksession.getWorkItemManager().registerWorkItemHandler("Human Task", taskHandler);
            taskHandler.connect();
            ut.commit();
            logger.dispose();
            processInstaceLogger.dispose();
        } catch (Throwable t) {
            // log.error(t.getMessage(), t.getCause());
            throw new RuntimeException("error while creating session", t);
        }

    }

Nov 24, 2011 10:26:14 PM org.apache.catalina.core.ApplicationContext log
SEVERE: StandardWrapper.Throwable
java.lang.RuntimeException: error while creating session
    at com.sample.processserver.TaskProcessServlet.init(TaskProcessServlet.java:43)
    at javax.servlet.GenericServlet.init(GenericServlet.java:160)
    at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1190)
    at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1103)
    at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1010)
    at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4957)
    at org.apache.catalina.core.StandardContext$3.call(StandardContext.java:5284)
    at org.apache.catalina.core.StandardContext$3.call(StandardContext.java:5279)
    at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
    at java.util.concurrent.FutureTask.run(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NullPointerException
    at org.jbpm.process.audit.JPAProcessInstanceDbLog.dispose(JPAProcessInstanceDbLog.java:165)
    at com.sample.processserver.TaskProcessServlet.init(TaskProcessServlet.java:40)
    ... 12 more
Nov 24, 2011 10:26:14 PM org.apache.catalina.core.StandardContext loadOnStartup
SEVERE: Servlet /OrderFactoryWeb threw load() exception
java.lang.NullPointerException
    at org.jbpm.process.audit.JPAProcessInstanceDbLog.dispose(JPAProcessInstanceDbLog.java:165)
    at com.sample.processserver.TaskProcessServlet.init(TaskProcessServlet.java:40)
    at javax.servlet.GenericServlet.init(GenericServlet.java:160)
    at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1190)
    at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1103)
    at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1010)
    at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4957)
    at org.apache.catalina.core.StandardContext$3.call(StandardContext.java:5284)
    at org.apache.catalina.core.StandardContext$3.call(StandardContext.java:5279)
    at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
    at java.util.concurrent.FutureTask.run(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)
Nov 24, 2011 10:26:14 PM org.apache.solr.servlet.SolrServlet init
INFO: SolrServlet.init()
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