servlet response's writer to the client if the
 protocol provides a way for doing so. In the case of HTTP, the character encoding is communicated as part of the
 <code>Content-Type</code> header for text media types. Note that the character encoding cannot be communicated via
 HTTP headers if the servlet does not specify a content type; however, it is still used to encode text written via the
 servlet response's writer.
 <p>
 Implementations are strongly encouraged to override this default method and provid