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HI

I am trying to run simple web application in jboss as7.

below is my persistance.xml file

<persistence-unit name="org.jbpm.persistence.jpa" transaction-type="JTA">

        <provider>org.hibernate.ejb.HibernatePersistence</provider>

        <jta-data-source>java:jboss/datasources/DemoDS</jta-data-source>

        <mapping-file>META-INF/JBPMorm.xml</mapping-file>

       <mapping-file>META-INF/ProcessInstanceInfo.hbm.xml</mapping-file>

        <class>org.drools.persistence.info.SessionInfo</class>

        <class>org.jbpm.persistence.processinstance.ProcessInstanceInfo</class>

        <class>org.drools.persistence.info.WorkItemInfo</class>

        <properties>

            <property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect" />

            <!-- property name="hibernate.show_sql" value="true" /> -->

            <property name="hibernate.hbm2ddl.auto" value="create" />

            <property name="hibernate.jdbc.use_streams_for_binary" value="true" />

            <property name="hibernate.transaction.manager_lookup_class" value="org.hibernate.transaction.JBossTransactionManagerLookup" />

            <!--   property name="hibernate.transaction.jta.platform" value="org.hibernate.service.jta.platform.internal.BitronixJtaPlatform" /-->

            <!--  property name="hibernate.transaction.manager_lookup_class" value="org.hibernate.transaction.BTMTransactionManagerLookup"/ -->

        </properties>

    </persistence-unit>

If I add this line

<mapping-file>META-INF/ProcessInstanceInfo.hbm.xml</mapping-file>

I got following errors.

Caused by: org.hibernate.DuplicateMappingException: Duplicate collection role mapping org.jbpm.persistence.processinstance.ProcessInstanceInfo.eventTypes

                at org.hibernate.cfg.Configuration$MappingsImpl.addCollection(Configuration.java:2582)

                at org.hibernate.cfg.HbmBinder.createClassProperties(HbmBinder.java:2139)

I remove this line it give me following error

2012-06-19 16:47:59,278 ERROR [org.drools.persistence.SingleSessionCommandService] - <Could not commit session> java.lang.IllegalArgumentException: Unknown entity: org.jbpm.persistence.processinstance.ProcessInstanceInfo

    at org.hibernate.ejb.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:223)

    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

Please suggest what should I use.

Thanks