title: This field leaks a context object
body: <p>My code: </p>
  
  <pre><code>class HttpRequestTask(private val debtWsUrl : URI, debtorText : TextView) : 
        AsyncTask&lt;Void, Void, Iterable&lt;Debtor&gt;?&gt;() {
              val debtorText: TextView = debtorText
  }
  </code></pre>
  
  <p>Why line with TextView shows warning: </p>
  
  <blockquote>
    <p>This field leaks a context object</p>
  </blockquote>
  
  <p>?</p>
  
  <p>How can I prevent this? </p>