[#111] Add retainAll(T...), retainAll(Stream<T>), retainAll(Iterable<T>), retainAll(Seq<T>)
[#111] Add retainAll(T...), retainAll(Stream<T>), retainAll(Iterable<T>), retainAll(Seq<T>)
netzwerg/jOOL,colinger/jOOL,stephenh/jOOL,Krasnyanskiy/jOOL,amitjoy/jOOL,jOOQ/jOOL