public static String escape(String s) {
        s = s.replaceAll("&", "&amp;");
        s = s.replaceAll("<", "&lt;");
        s = s.replaceAll(">", "&gt;");
        return s;
    }
Helper class in order to write HTML tables
clustercontroller-core/src/main/java/com/yahoo/vespa/clustercontroller/core/status/statuspage/HtmlTable.java