* @return The parsed ID, or {@code null} if there was no part matching the
* given string
*/
- private String getFieldId(FreenetRequest request, String partNameStart) {
+ private static String getFieldId(FreenetRequest request, String partNameStart) {
for (String partName : request.getHttpRequest().getParts()) {
if (partName.startsWith(partNameStart)) {
return partName.substring(partNameStart.length());