acter encoding if it is called after
 <a href="#setContentType(java.lang.String)"><code>setContentType(java.lang.String)</code></a> has been called with a charset specification, after <a href="#setCharacterEncoding(java.lang.String)"><code>setCharacterEncoding(String)</code></a> has
 been called, after <a href="#setCharacterEncoding(java.nio.charset.Charset)"><code>setCharacterEncoding(Charset)</code></a> has been called, after <code>getWriter</code> has been
 called, or after the response has been committe