stax-pretty-printer-small-update

   @Override
    public Object invoke(final Object proxy, final Method method, final Object[] args) throws Throwable {
        String m = method.getName();
        if (log.isDebugEnabled()) {
            log.debug("XML event: " + m);
        }
        // Needs to be BEFORE the actual event, so that for instance the
        // sequence writeStartElem, writeAttr, writeStartElem, writeEndElem,
        // writeEndElem
        // is correctly handled
        if ("writeStartElement".equals(m)) {
            // update state of parent node
            if (depth > 0) {
                hasChildElement.put(depth - 1, true);
            }
            // reset state of current node
            hasChildElement.put(depth, false);
            // indent for current depth
            if (firstLine == false) {
                target.writeCharacters(LINEFEED_CHAR);
                target.writeCharacters(repeat(depth, indent));
            }
            depth++;
        } else if ("writeEndElement".equals(m)) {
            depth--;
            if (hasChildElement.get(depth) == true) {
                target.writeCharacters(LINEFEED_CHAR);
                target.writeCharacters(repeat(depth, indent));
            }
        } else if ("writeEmptyElement".equals(m)) {
            // update state of parent node
            if (depth > 0) {
                hasChildElement.put(depth - 1, true);
            }
            // indent for current depth
            target.writeCharacters(LINEFEED_CHAR);
            target.writeCharacters(repeat(depth, indent));
        }
        method.invoke(target, args);
        firstLine = false;
        return null;
    }