title: CodecNotFoundException: Codec not found for requested operation: [map<varchar, varchar> <-> java.util.Map]
body: <p>i'm having an issue while fetching data from cassandra for a column cm_map&lt;varchar,varchar&gt;</p>
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-html lang-html prettyprint-override"><code>Iterator&lt;Row&gt; iterator = getDisMethod(disId);
          if (iterator.hasNext()) {
              Row rowdata = iterator.next();
              String calender = rowdata.get("fc_calendar",String.class);
              Map&lt;String,String&gt; cm = rowdata.get("cm_map",Map.class);
              System.out.print(cm);
  
          }</code></pre>
  </div>
  </div>
  </p>
  <p>i'm able to fetch data for calender variable but not for cm variable, it gives codec error</p>
  <blockquote>
  <p>CodecNotFoundException: Codec not found for requested operation: [map&lt;varchar, varchar&gt; &lt;-&gt; java.util.Map]</p>
  </blockquote>