code: public void add(OrafileDef def) {
          CaseInsensitiveString name = new CaseInsensitiveString(def.getName());
          {
              List<OrafileVal> list = map.get(name);
              if (list == null) {
                  list = new ArrayList<OrafileVal>();
                  map.put(name, list);
              }
              list.add(def.getVal());
          }
          list.add(def);
      }
docs: Append {@code def} to the end of this list.