Take a look at dashbuilder WAR /WEB-INF/etc/hibernate.cfg.xml, there is a "connection.datasource" property with value "java:comp/env/jdbc/jbpm" in generic binaries, but "java:comp/env/jdbc/dashbuilder" in EAP6.1 binaries. I suppose the value should be the same for both distributions (as it was before ER6).

Version-Release number of selected component (if applicable):
BPMS-6.0.0.ER6