@Nullable
  private @NlsSafe String checkCanCreateActionClass() {
    if (myDirectory != null) {
      try {
        DevkitActionsUtil.checkCanCreateClass(myDirectory, myActionClassNameEdit.getText());
      } catch (IncorrectOperationException e) {
        String exceptionMessage = ExceptionUtil.getMessage(e);
        return exceptionMessage != null ? exceptionMessage : DevKitBundle.message("new.action.cannot.create.class");
      }
    }
    return null;
  }
@Nullable
  private @NlsSafe String checkCanCreateActionClass()