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error on workflow an d process(Error: org.cmdbuild.workflow.CMWorkflowException: java.lang.NullPointerException)

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#1

Hi, 

I have installed openmaint and start with demo database.

I enable workflow engine and url is :http://localhost:8080/shark (image is attached).

when i click on process  i got error :Call: services/json/workflow/xpdlversions

------------------------------------------
Error: org.cmdbuild.workflow.CMWorkflowException: java.lang.NullPointerException
my shark.conf is :
# CMDBuild connection settings
org.cmdbuild.ws.url=http://localhost:8080/openmaint/
org.cmdbuild.ws.username=workflow
org.cmdbuild.ws.password=workflow
and my content.xml is :
<?xml version="1.0" encoding="UTF-8"?>
<Context>
        <Resource
                auth="Container"
                name="UserTransaction"
                type="javax.transaction.UserTransaction"
                jotm.timeout="180"
                factory="org.objectweb.jotm.UserTransactionFactory"/>
        <Resource
                name="test96"
                type="javax.sql.DataSource"
                driverClassName="org.postgresql.Driver"
                url="jdbc:postgresql://localhost:5433/test96"
                username="postgres"
                password="ndjhfds96"
                maxIdle="10"
                maxActive="300"
                maxWait="5000"
                factory="org.enhydra.jndi.DataSourceFactory"/>
</Context>


when i create new process, again this error appeare.


Please help me.


I can not create new process and