public static PsiClass @NotNull [] getSupers(@NotNull PsiClass psiClass) {
    PsiClass[] supers = getSupersInner(psiClass);
    for (PsiClass aSuper : supers) {
      LOG.assertTrue(aSuper != null);
    }
    return supers;
  }
public static PsiClass @NotNull [] getSupers(@NotNull PsiClass psiClass)