anonymous wrote : 19:39:06,208 ERROR [JDBCExceptionReporter] ERROR: invalid byte sequence for encoding "UTF8": 0x00 It's a bug in postgresql <-> hibernate interaction. 'name' is a string that contains the '\0' (NUL) character. Hibernate passes it on to postgresql without conversion. Postgresql thinks it is invalid and spits an error. Quick fix is to do name = name.replace('\0', ' '); or something on top of the function. The real fix would be to teach postgresql about NUL characters, or alternatively convert them in hibernate. Hope this helps. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3992779#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...