I used to get that message. Make sure that you have users in the jbpm_id_user table. Look at the console to see if hibernate is able to connect to your database etc. If users are not there then use following insert sqls for inserting into jbpm_id_user table (hopefully you didn't change jbpm tables) insert into JBPM_ID_USER (ID_, CLASS_, NAME_, EMAIL_, PASSWORD_) | values ('1', 'U', 'cookie monster', 'cookie.monster(a)sesamestreet.tv', 'crunchcrunch'); | insert into JBPM_ID_USER (ID_,CLASS_, NAME_, EMAIL_, PASSWORD_) | values ('2', 'U', 'ernie', 'ernie(a)sesamestreet.tv', 'canthereyoubert,theresabananainmyear'); | insert into JBPM_ID_USER (ID_,CLASS_, NAME_, EMAIL_, PASSWORD_) | values ('3', 'U', 'bert', 'bert(a)sesamestreet.tv', 'ernie,theresabananainyourear'); | insert into JBPM_ID_USER (ID_,CLASS_, NAME_, EMAIL_, PASSWORD_) | values ('4', 'U', 'grover', 'grover(a)sesamestreet.tv', 'mayday mayday'); Thanks. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3959558#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...