title: How to ignore "Is' methods with Jackson 2.2.3
body: <p>A simple class has "is" methods and "get" methods. I would like <code>Jackson</code> to ignore calling all "is" methods.</p>
  
  <p>I tried by setting <code>ObjectMapper</code>'s visibility by setting as</p>
  
  <pre><code>mapper.setVisibility(PropertyAccessor.IS_GETTER, Visibility.NONE);
  </code></pre>
  
  <p>But it is still considering the <code>is-getter</code> methods, why?</p>
  
  <p><code>Jackson</code> serializes getter methods and public variables. Is it possible to indicate <code>Jackson</code> to call only public getter methods but not serialize variables?</p>