private void checkSdk() {
      final String path = mySdkEditor.getPath();
      if (StringUtil.isEmptyOrSpaces(path)) {
        myErrorLabel.setVisible(true);
        myErrorLabel.setHyperlinkText("App Engine SDK path not specified. ", "Download", "");
        myMainPanel.repaint();
        return;
      }

      final ValidationResult result = AppEngineSdkUtil.checkPath(path);
      myErrorLabel.setVisible(!result.isOk());
      if (!result.isOk()) {
        myErrorLabel.setText("App Engine SDK path is not correct");
      }
      myMainPanel.repaint();
    }
 private static ValidationResult conjunctionOf(ValidationResult a, ValidationResult b) {
   return a.isOk() ? b : a;
 }