```java
public static ListNode getIntersectionNode(ListNode headA, ListNode headB) {
        if (headA == null || headB == null) {
            return null;
        }
        if (headA.equals(headB)) {
            return headA;
        }
        ListNode aNext = headA;
        ListNode bNext = headB;
        List<ListNode> aList = new ArrayList<>();
        List<ListNode> bList = new ArrayList<>();
        while (aNext.next != null || bNext.next != null) {
            if (aNext.equals(bNext)) {
                return aNext;
            }
            if (aList.contains(bNext)) {
                return bNext;
            }
            if (bList.contains(aNext)) {
                return aNext;
            }
            if (aNext != null) {
                aList.add(aNext);
                if (aNext.next != null) {
                    aNext = aNext.next;
                }
            }
            if (bNext != null) {
                bList.add(bNext);
                if (bNext.next != null) {
                    bNext = bNext.next;
                }
            }
        }
        if (aList.contains(bNext)) {
            return bNext;
        }
        if (bList.contains(aNext)) {
            return aNext;
        }
        return null;
    }
```