Hi,
Its looks simple but strange and not able to find why this null pointer exception when making AnnotationConfiguration object.

FirstExample.java
=============

package roseindia.tutorial.hibernate;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.AnnotationConfiguration;


public class FirstExample {
public static void main(String[] args) {
Session session = null;

try{

System.out.println("before annotation");
AnnotationConfiguration cfg=new AnnotationConfiguration();
System.out.println("after annotation");

SessionFactory sessionFactory =cfg.configure().buildSessionFactory();

session =sessionFactory.openSession();
//Create new instance of Contact and set values in it by reading them from form object
System.out.println("Inserting Record");
Transaction trn=session.beginTransaction();
session.beginTransaction();
Contact contact = new Contact();
contact.setId(6);
contact.setFirstName("Deepak");
contact.setLastName("Kumar");
contact.setEmail("[email protected]");
session.save(contact);
trn.commit();
System.out.println("Done");
}catch(Exception e){
System.out.println(e.getMessage());
}finally{
// Actual contact insertion will happen at this step
session.flush();
session.close();

}

}
}

=========
Err==> before annotation
Exception in thread "main" java.lang.NullPointerException
at roseindia.tutorial.hibernate.FirstExample.main(FirstExample.java:39)
Configration file :
---------------
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory name="SessionFactoryName">
<property name="hibernate.connection.driver_class">oracle.jdbc.driver.OracleDriver</property>
<property name="hibernate.connection.password">tiger</property>
<property name="hibernate.connection.url">jdbc:oracle:thin:@10.184.74.103:1521:orcl</property>
<property name="hibernate.connection.username">scott</property>
<property name="hibernate.dialect">org.hibernate.dialect.OracleDialect</property>
<mapping class="roseindia.tutorial.hibernate.Contact" resource="Contact.hbm.xml"/>
</session-factory>
</hibernate-configuration>

Contact.java File :
------------------
package roseindia.tutorial.hibernate;



import java.io.Serializable;

import javax.persistence.*;
@Entity
@Table (name="Contact")
public class Contact implements Serializable {
@Column (name="FirstName")
private String firstName;

@Column (name="Lastname")
private String lastName;
@Column (name="email")
private String email;

@Id @GeneratedValue
@Column (name="ID")
private long id;

public String getEmail() {
return email;
}

/**
* @return First Name
*/
public String getFirstName() {
return firstName;
}

/**
* @return Last name
*/
public String getLastName() {
return lastName;
}

/**
* @param string Sets the Email
*/
public void setEmail(String string) {
email = string;
}

/**
* @param string Sets the First Name
*/
public void setFirstName(String string) {
firstName = string;
}

/**
* @param string sets the Last Name
*/
public void setLastName(String string) {
lastName = string;
}

/**
* @return ID Returns ID
*/
public long getId() {
return id;
}

/**
* @param l Sets the ID
*/
public void setId(long l) {
id = l;
}



}



Could anyone pls help on this?
Regards,
Sankar. S