code: @SuppressWarnings("unchecked")
      public Map<String,String> getMap(String name) {
          Map<String,String> map = null;
          Map<String,Object> groupMap = (Map<String,Object>)get(name, PropType.group);
          if (groupMap != null) {
              map = new HashMap<>();
              for (String groupKey : groupMap.keySet()) {
                  String value = decryptValue(groupMap.get(groupKey).toString());
                  map.put(groupKey.substring(name.length() + 1), value);
              }
          }
          return map;
      }
docs: Finds a single-depth prop map for the given name (prefix omitted).