@Override
	public void serialize(HttpServletResponse httpResponse) throws IOException {
		httpResponse.setHeader(HttpHeader.CACHE_CONTROL, HttpHeader.NO_CACHE);
		httpResponse.addHeader(HttpHeader.CACHE_CONTROL, HttpHeader.NO_STORE);
		httpResponse.setHeader(HttpHeader.PRAGMA, HttpHeader.NO_CACHE);
		httpResponse.setDateHeader(HttpHeader.EXPIRES, 0);
		httpResponse.setContentType(contentType);
		httpResponse.setHeader(HttpHeader.CONTENT_LENGTH, Long.toString(file.length()));
		Files.copy(file, httpResponse.getOutputStream());
	}
@ Override public void serialize ( HttpServletResponse httpResponse ) throws IOException { httpResponse . setHeader ( HttpHeader . CACHE_CONTROL , HttpHeader . NO_CACHE ) ; httpResponse . addHeader ( HttpHeader . CACHE_CONTROL , HttpHeader . NO_STORE ) ; httpResponse . setHeader ( HttpHeader . PRAGMA , HttpHeader . NO_CACHE ) ; httpResponse . setDateHeader ( HttpHeader . EXPIRES , 0 ) ; httpResponse . setContentType ( contentType ) ; httpResponse . setHeader ( HttpHeader . CONTENT_LENGTH , Long . toString ( file . length ( ) ) ) ; Files . copy ( file , httpResponse . getOutputStream ( ) ) ; }
Serialize this file resource to HTTP response. Disable cache and set content type and content length.

@param httpResponse HTTP response.
@throws IOException if writing to underlying stream fails.