Upgrade from 5.12 to 5.12.1

[mig1]

Hi Activiti Team,
I had a locking issue on my testserver running activiti 5.12. When I read about a solution in 5.12.1 I undeployed activiti-explorer.war, did not change anything to the database (postgresql 9.2) and directly deployed activiti-explorer.war with 5.12.1 and my db.properties and driver included.
As a result I get
"ERROR [org.jboss.as.server.deployment.scanner] (DeploymentScanner-threads - 1) JBAS015052: Did not receive a response to the deployment operation within the allowed timeout period [300 seconds]. Check the server configuration file and the server logs to find more about the status of the deployment." and the deployment is rolled back by JBoss.

Did I anything wrong? What is the concept of upgrading acitiviti? Anything to do on db between undeployment of old and deployment of new version?

I also observed a relatively big number of demo processes. Can I somehow avoid them when deploying activiti-explorer?
Thanks
mig1

[frederikherema1]

There is a demo-data generator bean in the explorer appliction-context which you can comment out. Although, this doesn't take 300 seconds so seems like something else is keeping the thread busy for a long time.