private static @NotNull String getMemberQualifier(PsiMember member) {
    String qualifiedName = null;
    if (member instanceof PsiClass) {
      qualifiedName = ((PsiClass)member).getQualifiedName();
    }
    if (qualifiedName == null) {
      qualifiedName = Objects.requireNonNull(member.getName());
    }
    return qualifiedName;
  }
private static @NotNull String getMemberQualifier(PsiMember member)