title: Why is the parameter value an Object hash code for `request.getParameterMap().get(name)`
body: <p>Why is the parameter value an Object hash code:</p>
  
  <pre><code>input_name:[[Ljava.lang.String;@3f4d64]
  </code></pre>
  
  <p>I thought the code <code>request.getParameterMap().get(name);</code> would produce the value of the request parameter:</p>
  
  <pre><code>    Enumeration params = request.getParameterNames();
      while(params.hasMoreElements())
      {
          String name = (String)params.nextElement(); 
          String value = request.getParameterMap().get(name);
          logger.log(name + ": " + value);
      }
  </code></pre>