How can i switch from BIP32 to BIP44 using bitcoinj
Checkout bitcoinj master branch 

Discussion https://github.com/bitcoinj/bitcoinj/pull/1341

    Wallet walletBip39 = Wallet.fromSeed(params, seed);
    System.out.println(walletBip39);

    Wallet walletBip44 = Wallet.fromSeed(params, seed, Script.ScriptType.P2PKH, ImmutableList.of(new ChildNumber(44, true), new ChildNumber(0, true), ChildNumber.ZERO_HARDENED, ChildNumber.ZERO));
    System.out.println(walletBip44);