code: private static void handleXmlElement(Outline outline, Set<String> directClasses, JAnnotationValue type) {
          StringWriter sw = new StringWriter();
          JFormatter jf = new JFormatter(new PrintWriter(sw));
          type.generate(jf);
          String s = sw.toString();
          s = s.substring(0, s.length()-".class".length());
          if (!s.startsWith("java") && outline.getCodeModel()._getClass(s) == null && !foundWithinOutline(s, outline)) {
              directClasses.add(s);
          }
      }
docs: Handles the extraction of the schema type from the XmlElement
  annotation. This was surprisingly difficult. Apparently the
  model doesn't provide access to the annotation we're referring to
  so I need to print it and read the string back. Even the formatter
  itself is final!
  @param outline root of the generated code
  @param directClasses set of classes to append to
  @param type annotation we're analysing