public void layoutCells() {
		int minRow = Integer.MAX_VALUE;
		int minCol = Integer.MAX_VALUE;
		int maxCol = 0;
		
		int curRow = 0;
                NodeList rows = getDocument().getElementsByTagName("row");
		for (int i=0; i<rows.getLength(); i++) {
                        // ...

        Node sheetData = getDocument().getElementsByTagName("sheetData").item(0);
        for (Node node = sheetData.getFirstChild(); node != null; node = node.getNextSibling()) {
            if (!(node instanceof Element)) {
                continue;
            }
            Element row = (Element) node;
            // ...

XPathXlsxUtils.evaluateNodes(xlsxParser.getDocument(),"//:row/:c/gendoc:mark[@id='"+this.mark+"']")

XPathXlsxUtils.evaluateNodes(xlsxParser.getDocument(),"/:sheetData/:row/:c/gendoc:mark[@id='"+this.mark+"']")

    public void layoutCells() {
        int minRow = Integer.MAX_VALUE;
        int minCol = Integer.MAX_VALUE;
        int maxCol = 0;

        int curRow = 0;
        Node sheetData = getDocument().getElementsByTagName("sheetData").item(0);
        for (Node node = sheetData.getFirstChild(); node != null; node = node.getNextSibling()) {
            if (!(node instanceof Element)) {
                continue;
            }
            Element row = (Element) node;
            // ...

    public List<CellMark> getAppliedMarks(XLSXParser xlsxParser) {
        Set<CellMark> res = new HashSet<CellMark>();
        try {
            Node sheetData = xlsxParser.getDocument().getElementsByTagName("sheetData").item(0);
            for (Node row = sheetData.getFirstChild(); row != null; row = row.getNextSibling()) {
                for (Node cell = row.getFirstChild(); cell != null; cell = cell.getNextSibling()) {
                    for (Node node = cell.getFirstChild(); node != null; node = node.getNextSibling()) {
                        if ("gendoc:mark".equals(node.getNodeName())) {
                            if (mark.equals(((Element) node).getAttribute("id"))) {
                                res.add(getCellMark((Element) node));
                            }
                        }
                    }
                }
            }

//            NodeList refs = XPathXlsxUtils.evaluateNodes(xlsxParser.getDocument(),
//                    "//:row/:c/gendoc:mark[@id='" + this.mark + "']");
//            for (int i = 0; i < refs.getLength(); i++) {
//                Element markEl = (Element) refs.item(i);
//                CellMark m = getCellMark(markEl);
//                res.add(m);
//            }
        } catch (Exception e) {
            throw new IllegalArgumentException(e.getMessage(), e);
        }
        List<CellMark> l = new ArrayList<CellMark>(res);
        Collections.sort(l);
        return l;
    }

    protected void unmarkCells(XLSXParser xlsxParser) throws XPathExpressionException {
        Node sheetData = xlsxParser.getDocument().getElementsByTagName("sheetData").item(0);
        for (Node row = sheetData.getFirstChild(); row != null; row = row.getNextSibling()) {
            for (Node cell = row.getFirstChild(); cell != null; cell = cell.getNextSibling()) {
                for (Node node = cell.getFirstChild(); node != null; node = node.getNextSibling()) {
                    if ("gendoc:mark".equals(node.getNodeName())) {
                        if (mark.equals(((Element) node).getAttribute("id"))) {
                            node.getParentNode().removeChild(node);
                        }
                    }
                }
            }
        }

//        NodeList nl = XPathXlsxUtils.evaluateNodes(xlsxParser.getDocument(),
//                "//:row/:c/gendoc:mark[@id='" + mark + "']");
//        for (int i = 0; i < nl.getLength(); i++) {
//            Node n = nl.item(i);
//            n.getParentNode().removeChild(n);
//        }
    }

git.exe push -v --progress "origin" master:master
Pushing to ssh://git.eclipse.org:29418/gendoc/org.eclipse.gendoc
Enumerating objects: 27, done.
Counting objects: 100% (27/27), done.
Delta compression using up to 16 threads
Compressing objects: 100% (8/8), done.
Writing objects: 100% (14/14), 1.51 KiB | 1.51 MiB/s, done.
Total 14 (delta 7), reused 0 (delta 0), pack-reused 0
remote: Resolving deltas: 100% (7/7)
remote: error: branch refs/heads/master:
remote: To push into this reference you need 'Push' rights.
remote: User: dnikiforov
remote: Contact an administrator to fix the permissions
remote: Processing changes: refs: 1, done
To ssh://git.eclipse.org:29418/gendoc/org.eclipse.gendoc
! [remote rejected] master -> master (prohibited by Gerrit: not permitted: update)
error: failed to push some refs to 'ssh://git.eclipse.org:29418/gendoc/org.eclipse.gendoc'

git.exe push -v --progress "origin" master:refs/for/master
Pushing to ssh://git.eclipse.org:29418/gendoc/org.eclipse.gendoc
To ssh://git.eclipse.org:29418/gendoc/org.eclipse.gendoc
! [rejected]        master -> refs/for/master (non-fast-forward)
error: failed to push some refs to 'ssh://git.eclipse.org:29418/gendoc/org.eclipse.gendoc'
hint: Updates were rejected because a pushed branch tip is behind its remote
hint: counterpart. Check out this branch and integrate the remote changes
hint: (e.g. 'git pull ...') before pushing again.
hint: See the 'Note about fast-forwards' in 'git push --help' for details.