LitecoinJ's testnet is not working

So I am trying to use LitecoinJ for my Litecoin development (https://github.com/GENERALBYTESCOM/litecoinj/tree/litecoin-0.15.1)

However, when I try to connect testnet, it throws an error (null pointer).

NetworkParameters params = TestNet3Params.get();
final Wallet wallet = Wallet.createDeterministic(params, ScriptType.P2PKH);

So I checked TestNet3Params and it is using Bitcoin testnet DNS seeds:

TestNet3Params() {
    ...
    dnsSeeds = new String[] {
            "testnet-seed.bitcoin.jonasschnelli.ch", // Jonas Schnelli
            "seed.tbtc.petertodd.org",               // Peter Todd
            "seed.testnet.bitcoin.sprovoost.nl",     // Sjors Provoost
            "testnet-seed.bluematt.me",              // Matt Corallo
            "bitcoin-testnet.bloqseeds.net",         // Bloq
    };

I know Litecoin.org doesn’t develop LitecoinJ library, but are there any websites that I can get Litecoin Testnet Seed?

Alright, I figured out - it’s basically LitecoinJ testnet feature is not working at all. The genesis hash TestNet3Params.java is wrong in the first place (as of 07/13/2019)