@Nullable
  private static String descriptor(@NotNull PsiClass psiClass, int dimensions) {
    String fqn = getJvmClassName(psiClass);
    if (fqn == null) return null;
    return "[".repeat(dimensions) + 'L' + fqn + ';';
  }
@Nullable
  private static String descriptor(@NotNull PsiClass psiClass, int dimensions)