private static void performForField(PsiElement element, final Project project, Editor editor, List<GrMethod> constructors) {
    final GrField field = PsiTreeUtil.getParentOfType(element, GrField.class);
    if (constructors.isEmpty()) return;

    if (ApplicationManager.getApplication().isUnitTestMode()) {
      for (GrMethod constructor : constructors) {
        addParameter(field, constructor, project);
      }
      return;
    }

    JBPopupFactory.getInstance()
      .createPopupChooserBuilder(constructors)
      .setRenderer(new MethodCellRenderer(true))
      .setTitle(GroovyIntentionsBundle.message("create.parameter.for.field.intention.name")).
      setMovable(true).
                    setItemsChosenCallback((values) -> {
        ArrayList<GrMethod> selectedValues = Lists.newArrayList(values);
        selectedValues.sort((o1, o2) -> o2.getParameterList().getParametersCount() - o1.getParameterList().getParametersCount());
        CommandProcessor.getInstance().executeCommand(project, () -> {
          for (GrMethod selectedValue : selectedValues) {
            LOG.assertTrue(selectedValue.isValid());
            addParameter(field, selectedValue, project);
          }
        }, GroovyIntentionsBundle.message("create.parameter.for.field.intention.name"), null);
      }).createPopup().showInBestPositionFor(editor);
  }
private static void performForField(PsiElement element, final Project project, Editor editor, List<GrMethod> constructors)