public void commitChanges() throws TransformerException, IOException {
    Transformer optimusPrime = TransformerFactory.newInstance().newTransformer();
    optimusPrime.setOutputProperty(OutputKeys.INDENT, "yes");

    StreamResult robot = new StreamResult(file);
    DOMSource truck = new DOMSource(documentRoot);
    optimusPrime.transform(truck, robot);

    logger.info("Commited " + numberOfChanges.get() + " changes to " + file.getName());
    numberOfChanges.set(0);
}

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