List<SomePojo> list = new ArrayList<SomePojo>();
List<SomePojo> anotherList = new ArrayList<SomePojo>();
anotherList.add(list);
List mylist.addAll(secondList);
List<SomePojo> list = new ArrayList<SomePojo>();
List<SomePojo> anotherList = new ArrayList<SomePojo>();
anotherList.add(list);
List mylist.addAll(secondList);