Our JSP Editor should support this. To test, I created a MyJspPage.java class that implemented the HttpJspPage interface. Then I used the <%@page extends=”test.MyJspPage”%> directive on a new JSP file. The JSP Editor and validation seemed to work correctly. I was able to see all public members and methods of the MyJspPage class. I was also able to navigate to the inherited methods from the JSP editor to the Servlet class using the “Ctrl” modifier.
Is there some other action that you were referring to, or are you not seeing the behavior that I just described.