java - WebSocketContainer.connectToServer seems to hang -

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when try make websocket session through java application using websocketcontainter.connecttoserver seems hang. don't indication there exception, or connection made. code doesn't execute past connecttoserver call.

    string default_uri = "ws://blah/ws/test";     websocketcontainer wscontainer =  containerprovider.getwebsocketcontainer();     session session = wscontainer.connecttoserver(myclient.class, new uri(default_uri));      //this line never gets executed. session above isn't returned nor error     system.out.println(session);

from example, i'd expect sort of connection error seeing i'm trying establish connection websocket address isn't valid. when using valid ws address don't progress past getting connection return session.


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