if (key != null) staticAttributeKeys.put(key.getClass().getName() + "." + key.toString(), key);
String io = key.getClass().getName() + "." + key.toString(); if (writeAttributeKeys == null) writeAttributeKeys = new Hashtable(); if (readAttributeKeys == null) readAttributeKeys = new Hashtable(); writeAttributeKeys.put(key, io); readAttributeKeys.put(io, key);
  public static void registerStaticAttributeKey(Object key)  {    if (key != null)      staticAttributeKeys.put(key.getClass().getName() + "." + key.toString(),                              key);  }