for (ListMap<?, ?> wlk = next; wlk != null; wlk = wlk.next) {
sz++;
}
return sz;
}
<BUG>Option<V> get(final K key) {
</BUG>
if (key.equals(k)) {
<BUG>return Option.makeOption(v);
</BUG>
}

for (ListMap<?, ?> wlk = next; wlk != null; wlk = wlk.next) {
sz++;
}
return sz;
}
Optional<V> get(final K key) {
if (key.equals(k)) {
return Optional.of(v);
}
