title: Issues with upgrading Hibernate 3 to hibernate 4
body: <p>I have been upgrading my project from Hibernate 3.x version to Hibernate 4.1.4. Now I have a peculiar problem with me. </p>
  
  <p>After placing all the required JARs and referring them on the classpath, builing <code>java.lang.NoClassDefFoundError: org/hibernate/HibernateException</code></p>
  
  <p>This class was present in hibernate3.jar earlier. Now, Its in Hibernate-core. Still not able to figure out why its saying so..</p>
  
  <p>I deleted the earlier deployments and deployed this again. Verified Hibernate 4 jars being present there. Still I get this error when I start server. </p>
  
  <p>Any help on this would be very much appreciated.</p>