docs: @SuppressWarnings("rawtypes")
      private void getMultiRowAppData() {
          populatedAppData = true;
          Map<Object, Object> swappable = getSwappableData();
          Hashtable props = (Hashtable) ((CacheHashMap) getSessions()).getAllValues(this);
          if (props != null) {
              Enumeration kys = props.keys();
              while (kys.hasMoreElements()) {
                  Object key = kys.nextElement();
                  swappable.put(key, props.get(key));
              }
              synchronized (_attributeNames) {
                  refillAttrNames(swappable);
              }
          }
      }