broadcast to all sessions through websocket

[Matthew Broadhead]

Trying to broadcast to all sessions on a WebSocket but it is a bit hit 
and miss.  the WebSocket is got by

DefaultServerEndpointConfigurator dsec = new 
DefaultServerEndpointConfigurator();
NewsWebSocket nws = dsec.getEndpointInstance(NewsWebSocket.class);
nws.broadcast(myString);
and in the WebSocket I am trying to broadcast on looks like this

@ServerEndpoint(value = "/websockets/admin/news")
public class NewsWebSocket {
    private static final Set<Session> sessions = 
Collections.synchronizedSet(new HashSet<Session>());

    // ... @OnOpen, @OnMessage, @OnClose, @OnError

    public void broadcast(String string) {
        synchronized (sessions) {
            for (Session session : sessions) {
                 try {
                    session.getBasicRemote().sendText(string);
                } catch (IOException ex) {
                    ex.printStackTrace();
                }
            }
        }
    }
}

I also tried adding an "@Observes @MyEvent MyEvent blah" and firing an 
"Event<MyEvent>" but the breakpoint is never reached