public class Foo{
  private list1, list2;

  Bar bar = new Bar(list1, list2);
  // use bar.listA, bar.listB, bar.listC,
  //bar.listD, bar.listE

  private static class Bar{
    private list1, list2;
    private listA, listB, listC, listD, listE;

    private Bar(list1, list2) {
        this.list1 = list1;
        this.list2 = list2;
        //logic to split list1 and list2 into 5 lists: listA, listB, listC, listD, listE.
        //initialize the 5 lists
    }
  }
}