title: Storm emitting array of integers and retrieving it
body: <p>I'm turning an image to a 2D array of integers. Doing some process on that then I'm trying to emit the array in this way :</p>
  
  <pre><code>collector.emit( new Values ( scaledImageMatrix ) );
  </code></pre>
  
  <p>then I'm trying to retrieve the data in another bolt like this :</p>
  
  <pre><code>int [][] imageMatrix = input.get("scaled-image-matrix");
  </code></pre>
  
  <p>but I get the error </p>
  
  <pre><code>incompatible types
  [ERROR] found   : java.lang.Object
  [ERROR] required: int[][]
  </code></pre>
  
  <p>Any suggestions ? </p>
  
  <p>UPDATE :</p>
  
  <p>I tried this <code>int [][] imageMatrix = (int[][])input.get("scaled-image-matrix");</code></p>
  
  <p>and I got this error : </p>
  
  <pre><code>java.lang.IllegalArgumentException: Tuple created with wrong number of fields. Expected 1 fields but got 190 fields
  </code></pre>
  
  <p>Then I should change my question to : How to emit a two dimensional array ? </p>