How to create Entity Object when connecting JavaDB in Jdev 11g

I use Jdev 11g to connect JavaDB. When I use the BC4J wizard to create EO and VO, I only can see VO, the EO is empty.
any ideas?
Thanks

In the Application Navigator, right-click the project in which you want to create the entity object and choose New.
In the New Gallery, expand Business Tier, select ADF Business Components and then Entity Object, and click OK.
If this is the first component you're creating in the project, the Initialize Business Components Project dialog appears to allow you to select a database connection.
In the Initialize Business Components Project dialog, select the database connection or choose New to create a connection. Click OK.
On the Name page, do the following to create the entity object:
Enter the package name in which the entity object will be created.
Click Browse (next to the Schema Object field) to select the table for which you want to create the entity object.
Or, if you plan to create the table later, you can enter a name of a table that does not exist.
If you manually entered a table name in the Schema Objects field, you will need to define each attribute on the Attributes page of the wizard. Click Next.
When you are satisfied with the table object and its corresponding entity object name, click Finish

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