docs: private void addValidRemoteCandidate(TransportCandidate remoteCandidate) {
          // Add the candidate to the list
          if (remoteCandidate != null) {
              synchronized (validRemoteCandidates) {
                  LOGGER.fine("Added valid candidate: " + remoteCandidate.getIp() + ":" + remoteCandidate.getPort());
                  validRemoteCandidates.add(remoteCandidate);
              }
          }
      }