AbstractSortedCollection.higherNode() hangs

[sunrize531]

I think is some sort of recursion here. I've called SortedMap.higherKey on sorted map with this comparator:

package com.berry.iso {
    import org.as3commons.collections.framework.IComparator;

    public class ISOPointComparator implements IComparator {
        // Note: Unlike sort functions in Array and Vector this one should strictly return -1, 0 or 1.

        public function compare (item1:*, item2:*):int {
            var point1:IISOPoint = item1 as IISOPoint;
            var point2:IISOPoint = item2 as IISOPoint;
            var re:int = point1.cy - point2.cy || point2.cx - point1.cx;
            if (re != 0) {
                re = (re > 0) ? 1 : -1;
            }
            return re;
        }
    }
}