private V3Poller makeV3Poller(String key) throws Exception {
   MockArchivalUnit mau = new MockArchivalUnit();
   mau.setAuId("mock");
   mau.getPlugin().initPlugin(daemon);
   PollSpec ps = new MockPollSpec(mau, "http://www.example.com/", null, null, Poll.V3_POLL);
   MockNodeManager nodeMgr = new MockNodeManager();
   daemon.setNodeManager(nodeMgr, mau);
   return new V3Poller(ps, daemon, null, key, 20000, "SHA-1");
 }