docs: protected boolean checkIfHeaders(final HttpServletRequest request, final HttpServletResponse response,
  			final Attributes resourceAttributes) throws IOException {
  
  		return checkIfMatch(request, response, resourceAttributes)
  				&& checkIfModifiedSince(request, response, resourceAttributes)
  				&& checkIfNoneMatch(request, response, resourceAttributes)
  				&& checkIfUnmodifiedSince(request, response, resourceAttributes);
  	}