div class="jd-tagdata jd-tagdescr"><p></p></div>

    </div>
</div>





<!-- ========= CONSTRUCTOR DETAIL ======== -->
<!-- Protected ctors -->



<!-- ========= METHOD DETAIL ======== -->
<!-- Public methdos -->

<h2>Public Methods</h2>



<a id="ensure()"></a>

<div class="jd-details api apilevel-"> 
    <h4 class="jd-details-title">
      <span class="normal">
        public 
        static 
         
         
        synchronized 
        void
      </span>
      <span class="sympad">ensure</span>
   