After playing with the Ender client i get this error
java.lang.RuntimeException: java.net.SocketException: socket closed
at haven.Session$RWorker.run(Session.java:651)
Caused by: java.net.SocketException: socket closed
at java.net.DualStackPlainDatagramSocketImpl.socketReceiveOrPeekData(Native Method)
at java.net.DualStackPlainDatagramSocketImpl.receive0(Unknown Source)
at java.net.AbstractPlainDatagramSocketImpl.receive(Unknown Source)
at java.net.DatagramSocket.receive(Unknown Source)
at haven.Session$RWorker.run(Session.java:644)