I was able to successfully migrate to version 3.3 but the issue I am facing now is I am getting a few exceptions because there is _VERSION column added to few tables and I am getting the following exception Caused by: org.hibernate.PropertyAccessException: Null value was assigned to a property of primitive type setter of org.jbpm.taskmgmt.exe.TaskInstance.version at org.hibernate.property.DirectPropertyAccessor$DirectSetter.set(DirectPropertyAccessor.java:83) at org.hibernate.tuple.entity.AbstractEntityTuplizer.setPropertyValues(AbstractEntityTuplizer.java:337) What should be the deafult value of _VERSION column when we ugrade the database View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4197734#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...