@Nullable
  @Override
  public CancellableConnection createCancellableConnection() {
    return new CancellableConnection() {

      BugzillaXmlRpcRequest myRequest;

      @Override
      protected void doTest() throws Exception {
        // Reset information about server.
        myVersion = null;
        myAuthenticated = false;
        myAuthenticationToken = null;

        myRequest = createIssueSearchRequest(null, 0, 1, true);
        myRequest.execute();
      }

      @Override
      public void cancel() {
        myRequest.cancel();
      }
    };
  }
@Nullable
  @Override
  public CancellableConnection createCancellableConnection()