title: Null Values in ProcedureCall
body: <p>I try the following code:</p>
  
  <pre><code>    ProcedureCall call = ss.createStoredProcedureCall("servicos.CLASSIFIER_MAP");
  
      call.registerParameter( 1, String.class, ParameterMode.IN).bindValue(classifierString);
      call.registerParameter( 2, Long.class, ParameterMode.IN ).bindValue(totalRows);
  </code></pre>
  
  <p>Sometimes the variable totalRows is null and an error appears</p>
  
  <pre><code>WARN:   SQL Error: 17041, SQLState: 99999
  Error calling CallableStatement.getMoreResults
  </code></pre>
  
  <p>It is possible to send null values into a ProcedureCall in hibernate? </p>