private void stopNetBare() {
        if (mNetBareThread == null) {
            return;
        }
        NetBareLog.i("Stop NetBare service!");
        mNetBareThread.interrupt();
        mNetBareThread = null;
    }
A {@link Notification} object describing what to show the user. Must not be null.

@return The Notification to be displayed.
netbare-core/src/main/java/com/github/megatronking/netbare/NetBareService.java