code: public static XStream createXStream() {
          XStream xstream = new XStream(new DomDriver("UTF-8"));
          xstream.setMode(XStream.NO_REFERENCES);
          xstream.registerConverter(new FontConverter());
  
          xstream.alias("report", Report.class);
          xstream.alias("chart", Chart.class);
          xstream.useAttributeFor(Report.class, "version");
          xstream.useAttributeFor(Chart.class, "version");
  
          xstream = createQueryXStream(xstream);
          xstream = createReportXStream(xstream);
          xstream = createChartXStream(xstream);
  
          return xstream;
      }
docs: Create XStream for query and report load/save.
  
  @return XStream