Java Development Tools

I use JDeveloper 11gr2. When using wizard to create "Business Components from Tables" using OE(order entry) schema to create entity objects, associations are not automatically created for entity objects associated with synonym. For example, when i launch that wizard with OE schema selected, I select Customer (table) and Employee(synonym) to create my entities. When the wizard finished, the association between Customer and Employee is not automatically created for me. When i drag these 2 entities to the business component diagram, there is no association link between them.

Thank you for answering!