List-backed property of a list-backed property

[Johngara]

I've been wondering this for a while but is it possible to index an list
inside of a list?

ie.
You can have a 1 layer list-backed property via

public void setFoo(int key, Object value) {
        foo.set(key, value);
    }

    public Object getFoo(int key) {
        return foo.get(key);
    }

and in your jsp, reference a foo[0], foo[1], etc.

But can you put another List<Object> inside of the Object itself and
reference that in your jsp page at all?

Basically, what I would love to achieve is something like:
<c:forEach var="fooer" items="foo">
      <c:forEach var="fooerer" items="${fooer}">
            // ad infinitum?
             ${fooerer[12]}
      </c:forEach>
</c:forEach>

any ideas or suggestions?
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