ner will use a buffer at least as
 large as the size requested. The actual buffer size used can be found using <code>getBufferSize</code>.

 <p>
 A larger buffer allows more content to be written before anything is actually sent, thus providing the servlet with
 more time to set appropriate status codes and headers. A smaller buffer decreases server memory load and allows the
 client to start receiving data more quickly.

 <p>
 This method must be called before any response body content is written; if conte