docs: private void checkRemoteCandidate(final TransportCandidate offeredCandidate) {
          offeredCandidate.addListener(new TransportResolverListener.Checker() {
              @Override
              public void candidateChecked(TransportCandidate cand, final boolean validCandidate) {
                  if (validCandidate) {
                      if (getNegotiatorState() == JingleNegotiatorState.PENDING)
                          addValidRemoteCandidate(offeredCandidate);
                  }
              }
  
              @Override
              public void candidateChecking(TransportCandidate cand) {
              }
  
          });
          offeredCandidate.check(resolver.getCandidatesList());
      }