package com.example.hibernateexample;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;

public class HibernateExample {

   public static void main(String[] args) {
      Session session = null;
       try
       {
           // This step will read hibernate.cfg.xml    and prepare hibernate for use
           SessionFactory sessionFactory = new Configuration().configure().buildSessionFactory();
           session = sessionFactory.openSession();
           //Create new instance of Employee and set values in it by reading them from form object
           System.out.println("Inserting Record");
           Employee employee = new Employee();
           employee.setFirstname("John");
           employee.setLastname("Smith");
           session.save(employee);
           System.out.println("Done");
       }
       catch(Exception e)
       {
         System.out.println(e.getMessage());
       }
       finally
       {
          System.out.println("GOT TO FINALLY{}");
         // Actual employee insertion will happen at this step
          try
          {
              session.flush();
              session.close();
          }
          catch (Exception e)
          {
              System.out.println("SESSION FLUSH/CLOSE EXCEPTION");
              System.out.println(e.getMessage());
          }
       }
   }
}

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/log4j/LevelGOT TO FINALLY{}
SESSION FLUSH/CLOSE EXCEPTION
null

   at org.slf4j.LoggerFactory.getSingleton(LoggerFactory.java:189)
   at org.slf4j.LoggerFactory.bind(LoggerFactory.java:112)
   at org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:105)
   at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:235)
   at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:208)
   at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:221)
   at org.hibernate.cfg.Configuration.<clinit>(Configuration.java:151)
   at com.example.hibernateexample.HibernateExample.main(HibernateExample.java:16)
Caused by: java.lang.ClassNotFoundException: org.apache.log4j.Level
   at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
   at java.security.AccessController.doPrivileged(Native Method)
   at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
   at sun.misc.Launcher$ExtClassLoader.findClass(Launcher.java:229)
   at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
   at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
   ... 8 more