Hi,

I have a quite strange problem. I have a pretty large set of tables, linked together with bidirectional one-to-many/many-to-one associations.

The problem occurs when i try to run my application. I get an error message saying that one of my tables already exist. But, when i remove the mapping for this class, i get an error message that this class is not mapped. I really don't get this, as the table is mapped only one place. Could there be that a class could be mapped through an association or something like that?

- Tobb

Seems like your application is trying to create the table again.
So if there are unwanted DDL-statements (Data Definition Language) such as 'create table' statements
when you start the application, I guess that you forgot to remove the hbm2ddl.auto property in your persistence.xml file

Fixed it, was a bug in the underlying database. I am using create-drop for developing, but one of the tables appearantly wasn't properly dropped. Just renamed the database to start fresh and it worked again..