docs: protected void doDelete( HttpServletRequest req, HttpServletResponse resp )
          throws ServletException, IOException
      {
          String path = req.getPathInfo();
          String context;
          if ( path == null )
          {
              path = req.getServletPath();
              context = req.getContextPath();
          }
          else
          {
              context = req.getContextPath() + req.getServletPath();
          }
          Entry entry = fileSystem.get( path );
          if ( entry == null )
          {
              resp.setStatus( HttpURLConnection.HTTP_OK );
              return;
          }
          try
          {
              fileSystem.remove( entry );
              resp.setStatus( HttpURLConnection.HTTP_OK );
          }
          catch ( UnsupportedOperationException e )
          {
              resp.sendError( HttpURLConnection.HTTP_BAD_METHOD );
          }
      }