We are getting the following error when we have integrated jbpm-gwt-console-server into jboss 7.0.2.

We got this error when we have tried to login to jBPM console.

In persistence.xml

we have following code.

<property name="hibernate.transaction.manager_lookup_class" value="org.jbpm.integration.console.JBPMTransactionManager" />

error is as follows:

Could not instantiate TransactionManagerLookup 'org.jbpm.integration.console.JBPMTransactionManager'

Caused by: javax.persistence.PersistenceException: [PersistenceUnit: org.jbpm.persistence.jpa] Unable to build EntityManagerFactory

Servlet.service() for servlet Resteasy threw exception: org.jboss.resteasy.spi.UnhandledException: java.lang.ExceptionInInitializerError