private static boolean allFqnsAreUnresolved(@NotNull Project project, @NotNull List<String> fqns) {
    if (fqns.isEmpty()) return false;
    JavaPsiFacade facade = JavaPsiFacade.getInstance(project);
    GlobalSearchScope scope = GlobalSearchScope.allScope(project);
    return ContainerUtil.all(fqns, fqn -> facade.findClass(fqn, scope) == null);
  }
private static boolean allFqnsAreUnresolved(@NotNull Project project, @NotNull List<String> fqns)