we use JBPM-3.1.2 and the DataBase is Oracle 9i ,jdk1.4.2 when I deploy a processdefinition, the hibernate didn't tell any Exception. but when I check the data in the DataBase, I find that: the node which type is R(Start-node) or E(End-node) miss its processdefinition. In the table which named 'JBPM-NODE' ,the FIELD 'PROCESSDEFINITION_' is null,which node type is R or E, but other node is right. it didn't happen all the time, some times, when I deploy again,this problem is disappear. thank you!~ [img]http://3834029.photo.hexun.com/originalPic.aspx?photoID=60214652&...] View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4213221#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...