DeterministicKey hd = DeterministicKey.deserializeB58("xpub...", MainNetParams.get());
DeterministicHierarchy hi = new DeterministicHierarchy(hd);
List<ChildNumber> childList = new ArrayList<ChildNumber>();
ChildNumber childNumber = new ChildNumber(0, false);
childList.add(childNumber);
DeterministicKey key = hi.get(childList, true, true);
Address address = key.toAddress(MainNetParams.get());