if(pause == null) { doesn't work
<p>I use <code>if(pause == null)</code> to do something when <code>pause</code> is <code>null</code>. But I get the error</p>

<p><code>the operator == is undefined for the argument type(s) long,null</code> </p>

<p>Here is the code,</p>

<pre><code>public class Timer extends CountDownTimer {
    long pause = (Long) null;

    public Timer(long startTime, long interval) {
        super(startTime, interval);
    }

    @Override
    public void onTick(long millisUntilFinished) {
        content.setText("Tijd over: " + millisUntilFinished / 100);
    }

    public void onPause(long millisUntilFinished) {
        if(pause == null) {
            pause = millisUntilFinished;
            content.setText("Tijd over: " + millisUntilFinished / 100);
            this.cancel();
        }
        else {
            this.start();   
        }
    }

    @Override
    public void onFinish() {
        content.setText("Tijd is op!");
    }
}
</code></pre>

<p>This class isn't finished, so ignore the rest of the code.</p>
