More info: it doesn't always cause an exception, but it never returns any query results. If I put % in all the fields or a * in all the fields then it doesn't cause an exception. This is probably closer to the root cause (SQL Error: -227): 20:58:00,121 INFO [STDOUT] Hibernate: select top ? rolleruser0_.id as id58_, rolleruser0_.locale as locale58_, rolleruser0_.username as username58_, rolleruser0_.passphrase as passphrase58_, rolleruser0_.fullname as fullname58_, rolleruser0_.emailaddress as emailadd6_58_, rolleruser0_.datecreated as datecrea7_58_, rolleruser0_.timezone as timezone58_, rolleruser0_.isenabled as isenabled58_ from roller.rolleruser rolleruser0_ where (rolleruser0_.username like ?) and (rolleruser0_.fullname like ?) and (rolleruser0_.locale like ?) and (rolleruser0_.timezone like ?) and rolleruser0_.isenabled=? 20:58:00,124 WARN [JDBCExceptionReporter] SQL Error: -227, SQLState: 3F000 20:58:00,124 ERROR [JDBCExceptionReporter] invalid schema name: ROLLER in statement [select top ? rolleruser0_.id as id58_, rolleruser0_.locale as locale58_, rolleruser0_.username as username58_, rolleruser0_.passphrase as passphrase58_, rolleruser0_.fullname as fullname58_, rolleruser0_.emailaddress as emailadd6_58_, rolleruser0_.datecreated as datecrea7_58_, rolleruser0_.timezone as timezone58_, rolleruser0_.isenabled as isenabled58_ from roller.rolleruser rolleruser0_ where (rolle ... View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3957954#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...