Maciej, thank you for taking the time to respond. Unfortunately, this did not solve the issue. However, I am now wondering if perhaps the issue is a hibernate conflict. I changed the JPA logging to "ALL" and found a few messages in the log that I think may indicate this (below). I appreciate any help I can get, as I am new to persistence and anything beyond the basics when it comes to JBoss and J2EE. I think my next step is to remove the hibernate*.jar files from the WEB-INF/lib directory and add org.hibernate as a dependency to MANIFEST.MF.
Thanks,
Brian
08:52:05,570 DEBUG [org.jboss.as.jpa] (MSC service thread 1-2) added (default provider) org.hibernate dependency to jbpm-gwt-console-server.war (since 1 PU(s) didn't specify jboss.as.jpa.providerModule)
08:52:05,944 DEBUG [org.jboss.as.jpa] (MSC service thread 1-3) Deployment has its own persistence provider class org.hibernate.ejb.HibernatePersistence associated with classloaders [ModuleClassLoader for Module "deployment.jbpm-gwt-console-server.war:main" from Service Module Loader]
08:52:06,380 DEBUG [org.jboss.as.jpa] (MSC service thread 1-3) loaded persistence provider adapter org.jboss.as.jpa.hibernate:4
08:52:06,380 TRACE [org.jboss.as.jpa] (MSC service thread 1-3) returning global (module) Persistence Provider org.hibernate.ejb.HibernatePersistence
08:52:06,380 TRACE [org.jboss.as.jpa] (MSC service thread 1-3) lookup provider checking provider version (4.0.1.Final)
08:52:07,518 WARN [org.hibernate.internal.util.xml.DTDEntityResolver] (MSC service thread 1-3) HHH000223: Recognized obsolete hibernate namespace http://hibernate.sourceforge.net/. Use namespace http://www.hibernate.org/dtd/ instead. Refer to Hibernate 3.6 Migration Guide!
08:52:07,845 WARN [org.hibernate.internal.util.xml.DTDEntityResolver] (MSC service thread 1-3) HHH000223: Recognized obsolete hibernate namespace http://hibernate.sourceforge.net/. Use namespace http://www.hibernate.org/dtd/ instead. Refer to Hibernate 3.6 Migration Guide!