This is so annoying working with jbpm 5.3!
For every next step, a new issue rises which is faced by all and yet not been resolved.
I have tried a sample process with a single user task in the guvnor-web designer and build it. After accessing the console, I have faced many errors.
Right from "java.lang.IllegalArgumentException: org.hibernate.QueryParameterException: could not locate named parameter [userId]"
to the error posted in this thread.
Series of errors:
1) "java.lang.IllegalArgumentException: org.hibernate.QueryParameterException: could not locate named parameter [userId]"
Resolution: replaced jbpm-human-task-core-5.3.0.Final.jar at locations as suggested in post: https://community.jboss.org/thread/203763?start=15&tstart=0
2) "Could not connect task client HornetQ(127.0.0.1:5445)" in the console with "Servlet.service() for servlet Resteasy threw exception: org.jboss.resteasy.spi.UnhandledException: java.lang.NoClassDefFoundError: Could not initialize class org.jbpm.integration.console.StatefulKnowledgeSessionUtil$SessionHolder" in the server.log
https://community.jboss.org/servlet/JiveServlet/downloadImage/2-761911-19584/450-332/HornetError.png