if (trace) { log.trace(this + " flushes downcache"); }  pm.addReferences(channel.getChannelID(), downCache);
if (trace) { log.trace(this + " flushing " + downCache.size() + " refs from downcache"); }
   protected void flushDownCache() throws Exception   {      if (trace) { log.trace(this + " flushes downcache"); }      pm.addReferences(channel.getChannelID(), downCache);            downCache.clear();      if (trace) { log.trace(this + " cleared downcache"); }   }