If any editor kit wants to extend or built on top
of some other kit direct module dependency is
required. It would be better to create FilterKit
accessible by MIME type during runtime. See the
issue #26239 how JSP editor and XML text editor
are affected by this problem.

Petr Kuzel wrote:
>   class YourKit extends FilterKit { // it should
be defined by editor module
>
>     YourKit() {
>      
super(EditorPane.getEditorKitForContentType("text/xml"));
>     }
>
>     // redefine some factory methods here
>     ...
>   }