I can confirm the same problem with the jms tables. I missed out where they were generated from, but they are the ones causing the problem. When you drop those tables, at least the seam generate-entities will succesfully finish. mysql> select table_name, table_schema from information_schema.tables where table_schema='foo'; +-------------------+--------------+ | table_name | table_schema | +-------------------+--------------+ | HILOSEQUENCES | foo | | JMS_ROLES | foo | | JMS_SUBSCRIPTIONS | foo | | JMS_TRANSACTIONS | foo | | JMS_USERS | foo | | TIMERS | foo | | jms_messages | foo | | user | foo | +-------------------+--------------+ 8 rows in set (0.01 sec) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3995926#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...