@Nullable
    public static XmlNode merge(XmlNode dominant, XmlNode recessive) {
        return merge(dominant, recessive, null);
    }

    /**
     * Merges two XML nodes.
     */
    @Nullable
    public static XmlNode merge(
            @Nullable XmlNode dominant, @Nullable XmlNode recessive, @Nullable Boolean childMergeOverride) {
        return getService().doMerge(dominant, recessive, childMergeOverride);
    }

        return XmlService.merge(this, source, childMergeOverride);
    }

    /**
     * Merge recessive into dominant and return either {@code dominant}
     * with merged information or a clone of {@code recessive} if
     * {@code dominant} is {@code null}.
     *
     * @param dominant the node
     * @param recessive if {@code null}, nothing will happen
     * @return the merged node
     *

     *
     * @param target the target location
     * @param source the source location
     * @param sourceDominant the boolean indicating of {@code source} is dominant compared to {@code target}
     * @return the merged location
     */
    public static InputLocation merge(InputLocation target, InputLocation source, boolean sourceDominant) {
        if (source == null) {

                        }

                        // TODO should this be part of mediation?
                        // previous one is more dominant
                        ResolutionNode nearest;
                        ResolutionNode farthest;

                        if (resolved == previous) {
                            nearest = previous;