title: cassandraOperations.select ignore null values
body: <p>I am trying to get <code>User</code> using <code>cassandraOperations.select(s, User.class)</code> but I am getting below error</p>
  
  <pre><code>Caused by: java.lang.IllegalArgumentException: Can not set boolean field com.rogs.cassandra.User.userStatus to null value
  </code></pre>
  
  <p>Error is correct as I have <code>null</code> values for <code>userStatus</code> of some users in Cassandra DB, is there anyway to ignore the <code>null</code> while getting results with <code>cassandraOperations</code>.</p>
  
  <p>My User class is here.</p>
  
  <pre><code>@Table
  public class User{
      @PrimaryKey
      private String userId;
      private String userName;
      private String userDept;
      private boolean userStatus;
      ....
  }
  </code></pre>