Calling two methods with the same arity with null value
<p>For the methods:</p>

<pre><code> public void doSomething(mObject1 ob){
 //Code A
 }

 public void doSomething(mObject2 ob){
 //Code B
 }
</code></pre>

<p>Whats the code executed when calling and why?</p>

<pre><code>doSomething(null);
</code></pre>
