Is there a way to include "@" in the user when establishing a smb connection with NtlmPasswordAuth using Java?

Question

I have a username which has an @ in it and I want to establish a smb share connection (host OS: MacOS). Lets say I have: user: blabla@bla pass: passw0rd

String url = distribution_path;
    NtlmPasswordAuthentication auth = new NtlmPasswordAuthentication(null, user, pass);
    SmbFile dir = new SmbFile(url, auth);
    for (SmbFile f : dir.listFiles())
    {
        System.out.println(f.getName());
    }