src/main/java/org/apache/commons/jxpath/ri/model/dom/DOMNodeIterator.java [64:90]:
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    @Override
    public int getPosition() {
        return position;
    }

    @Override
    public boolean setPosition(final int position) {
        while (this.position < position) {
            if (!next()) {
                return false;
            }
        }
        while (this.position > position) {
            if (!previous()) {
                return false;
            }
        }
        return true;
    }

    /**
     * Set the previous position.
     * @return whether valid
     */
    private boolean previous() {
        position--;
        if (!reverse) {
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src/main/java/org/apache/commons/jxpath/ri/model/jdom/JDOMNodeIterator.java [82:111]:
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    @Override
    public int getPosition() {
        return position;
    }

    @Override
    public boolean setPosition(final int position) {
        while (this.position < position) {
            if (!next()) {
                return false;
            }
        }
        while (this.position > position) {
            if (!previous()) {
                return false;
            }
        }
        return true;
    }

    /**
     * This is actually never invoked during the normal evaluation
     * of xpaths - an iterator is always going forward, never backwards.
     * So, this is implemented only for completeness and perhaps for
     * those who use these iterators outside of XPath evaluation.
     * @return boolean
     */
    private boolean previous() {
        position--;
        if (!reverse) {
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