Task Assignment Expression, Hibernate Parameter Error

[johnhurtchan]

I'm using Oracle as my datasource and using jBPM in my own web application. I have the JBPM schema on Oracle with the JBPM_ID_GROUP table with 1 row for group 'DivisionHead'.

When jBPM tries to assign the task to "group(DivisionHead)" I get the below errors:

WARN QuerySplitter : no persistent classes found for query class: select g from org.jbpm.identity.Group as g where g.name = :groupName

WARN RequestProcessor : Unhandled Exception thrown: class org.jbpm.graph.def.DelegationException
14:53:06,580 ERROR [[action]] Servlet.service() for servlet action threw exception
java.lang.IllegalArgumentException: Parameter groupName does not exist as a named parameter in [select g from org.jbpm.identity.Group as g where g.name = :groupName]
at org.hibernate.impl.AbstractQueryImpl.setParameter(AbstractQueryImpl.java:356)

Anyone know whats wrong and how to fix it?

[johnhurtchan]

I look at the source for IdentitySession.java and see this code...
It looks like "groupName" is a parameter as set by query.setString(). So what can I do to fix this problem? Please help. Thanks.

public Group getGroupByName(String groupName)
{
Group group = null;
Query query = session.createQuery("select g " + "from org.jbpm.identity.Group as g " + "where g.name = :groupName");
query.setString("groupName", groupName);
List groups = query.list();
if ((groups != null) && (groups.size() > 0))
{
group = (Group)groups.get(0);
}
return group;
}

[salaboy21]

This kind of warning / error could be that in you hibernate.cfg.xml you don't have the group, user and membership entities mapper.. maybe there are commented....
Take a look