JBoss Community

I have found solution.

In my jbpm.cfg.xml

<?xml version="1.0" encoding="UTF-8"?>

<jbpm-configuration>

  <import resource="jbpm.default.cfg.xml" />

  <import resource="jbpm.tx.hibernate.cfg.xml" />

  <import resource="jbpm.jpdl.cfg.xml" />

<import resource="jbpm.bpmn.cfg.xml" />

  <import resource="jbpm.identity.cfg.xml" />

  <import resource="jbpm.businesscalendar.cfg.xml" />

</jbpm-configuration>

I have deleted import if (  <import resource="jbpm.bpmn.cfg.xml" /> ) from my xml file, everything worked perfectly.