@Nullable
  public static String getMainJVMClassName(@NotNull PsiClass psiClass) {
    JavaMainMethodProvider mainMethodProvider = getApplicableMainMethodProvider(psiClass);
    if (mainMethodProvider != null) {
      return mainMethodProvider.getMainClassName(psiClass);
    }

    return ClassUtil.getJVMClassName(psiClass);
  }
@Nullable
  public static String getMainJVMClassName(@NotNull PsiClass psiClass)