Name: boT120536 Date: 01/29/2001


java version "1.3.0"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.0-C)
Java HotSpot(TM) Client VM (build 1.3.0-C, mixed mode)

In JAXP 1.0.1, the item(index) method sometimes fails to return the last item
of a NodeList.

I came across the problem when I had a list with just 1 node: item(0) returns
that node and item(1) returns null (as expected), but subsequent calls to
item(0) always return null instead of the node.

I think there is a general problem, as follows:-

    NodeList list = parentElem.getElementsByTagName("whatever");
    int n = list.getLength();
    Element elem;
    elem = (Element) list.item(n - 1); // works OK (returns last item)
    elem = (Element) list.item(n); // works OK (returns null)
    elem = (Element) list.item(n - 1); // fails - returns null instead of last
item

(I believe the problem is in the TagList class of ParentNode.java, in that
lastIndex is not incremented when lastWalker.getNextElement returns null.
Next time, the walker is not in the expected position and lastWalker.getCurrent
is mistakenly used).
(Review ID: 115317)
======================================================================