WebSession.java still references removed HttpSessionContext API

Hi,

I noticed that the master branch has been migrated to the jakarta.* namespace. However, the WebSession.java file still references jakarta.servlet.http.HttpSessionContext, which has been removed in Servlet 6.0.0.

Since HttpSessionContext is deprecated and no longer part of the Jakarta Servlet API, I recommend removing the related code to ensure compatibility with Servlet 6 and beyond.

Thanks,
Lakshmikantha Reddy

Open WebSession.java and locate its jakarta.servlet.http.HttpSessionContext references. Check the surrounding code against the Servlet 6 API, remove the related obsolete code, and verify that the project remains compatible with Servlet 6.

Written by the indexing model from the issue text.