Your object is stored in jbpm_bytearray/block because there is no hibernate mapping for it, that means, unknown serializeable objects are stored as byte-array. (This behaviour is declared in jbpm.varmapping.xml) I tired a similar scenario some time ago. I am not sure if it fits exactly your needs but maybe this helps: 1. Create table in your jbpm-db, e.g. jbpm_test 2. Create mapping class for test: com/test/Test.java 3. Create hibernate mapping file: com/test/Test.hbm.xml 4. Put mapping into your hibernate.cfg.xml: 5. Put all into your ear/war Thats all... Now you should be able to create/use objects of type test in your process, which are taken/stored in your table. In variableinstance, only references to your table are stored. I am not sure but in your example you use package "dgbdatamodel". hibernate tells you "Resource: com/dgbdatamodel/Student.hbm.xml not found". So maybe you should change your package to "com.dgbdatamodel". View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4060240#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...