code: public FogbugzCase getCaseById(int id) throws InvalidResponseException, NoSuchCaseException {
          List<FogbugzCase> caseList = this.searchForCases(Integer.toString(id));
          if (caseList.size() > 1) {
              throw new InvalidResponseException("Expected one case, found multiple, aborting.");
          }
          return caseList.get(0);
      }
docs: Retrieves a case using the Fogbugz API by caseId.
  @param id the id of the case to fetch.
  @return FogbugzCase if all is well, else null.