public synchronized void receiveClose(short channel, Close close) {
setClosedForInput(true);
_connectionEventListener.closeReceived();
switch (_state) {
case UNOPENED:
case AWAITING_OPEN:
Error error = new Error();
error.setCondition(ConnectionError.CONNECTION_FORCED);
error.setDescription("Connection close sent before connection was opened");
connectionError(error);
break;
case OPEN:
sendClose(new Close());
break;
case CLOSE_SENT:
default:
}
}
