I use a MySQL 5 database with Jbpm, running on tomcat 5.0.28 I have nightly "live" backups of the MySQL jbpm db which runs. When restoring a backup to a different machine/environment, the JbpmJobExecutor thread throws a NoClassDefFoundError exception, after which my system seems to be pretty much useless. If looking at the db table 'jbpm_job', the LOCKOWNER_ column specifies the ip address of the original server/machine that the database resides on. If I modifiy these ip addresses to be the same as the machine this db is now on, everything seems to work fine. Is it okay to just modify that column/value like that so it runs on the different machine? Or is there a 'proper' way if backing up and restoring to a different machine? Thanks. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4220478#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...