runtime error using BDNodeModel


    I am trying to create new database nodes, and I would like to extend the classes BDNodeModel, DBDialogPane, etc. 

When I try to execute my extension (MyDBQueryNodeModel extends DBNodeModel...), I obtain the following error:

" cannot access its superclass"

I have declare my class MyDBQueryNodeModel inside of the package, in order to have access to the DBNodeModel class, as it is not declared as public.

Thanks a lot in advance,


You cannot declare the same package as in the org.knime.base-Plug-in in another Plug-in that is not signed with our key. Thomas may comment why the class is not public.