digraph {
  serv [label="ServerContextImpl"];
  gwprov [label="GWServerChannelProvider"];
  cache [label="ChannelCache"];
  entry [label="ChannelCacheEntry"];
  clichan [label="InternalChannelImpl"];
  gwchan [label="GWChannel"];
  creq [label="CRequester"];
  servreq [label="ServerChannelRequesterImpl"];
  servchan [label="ServerChannelImpl"];

  serv -> gwprov [color=red,label="N"];

  gwprov -> cache [color=red,label="1"];

  cache -> entry [color=green,label="N"];
  cache -> gwprov [color=blue,label="1"];

  entry -> cache [color=blue,label="1"];
  entry -> clichan [color=red,label="1"];
  entry -> gwchan [color=blue,label="N"];

  clichan -> creq [color=red,label="1"];

  creq -> entry [color=blue,label="1"];

  gwchan -> entry [color=red,label="1"];
  gwchan -> servreq [color=red,label="1"];

  servchan -> gwchan [color=red,label="1"];
}