java.lang.ClassCastException: java.math.BigInteger cannot be cast to java.lang.Long

Question

I want to return number of rows using native sql. But console says me java.math.BigInteger cannot be cast to java.lang.Long. What\'s wrong? This is my method:

Answer 1

  String query ="select count(*) from tablename";       
  Number count = (Number) sessionFactory.getCurrentSession().createSQLQuery(query).uniqueResult();
  Long value = count.longValue();

I tried this it works well