Problema Hibernate

[Dreamer89]

Salve. E' da poco che mi sono avvicinato ad Hibernate e seguendo varie guide su internet ho provato a costruire una piccola applicazione con Netbeans.

Nuovo progetto ---> Applicazione Java

Vado nelle proprietà del progetto ed importo i file: hibernate3.jar e quella di mysql.

Creo una tabell in mysql denominata "Persona" con 2 colonne stringhe: Nome e Cognome.

Creo il mio JavaBean:

package hibernatetest;

public class Person {
    
    private String nome;
    private String cognome;

    public String getCognome() {
        return cognome;
    }

    public void setCognome(String cognome) {
        this.cognome = cognome;
    }

    public String getNome() {
        return nome;
    }

    public void setNome(String nome) {
        this.nome = nome;
    }

} 

Creo il programma principale:

package hibernatetest;

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

public class Main {
    
    public static void main(String[] args) {
        SessionFactory sessionFactory = new Configuration().configure().buildSessionFactory();
        Session session = sessionFactory.getCurrentSession();
        session.beginTransaction();
        
        Person person = new Person();
        person.setNome("Adds");
        person.setCognome("asd");
        
        session.save(person);
        session.getTransaction().commit();
    }

} 

Creo i file xml:

hibernate.cfg.xml

<?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>

        
        <property name="connection.driver_class">com.mysql.jdbc.Driver</property>
        <property name="connection.url">jdbc:mysql://localhost/mysql</property>
        <property name="connection.username">root</property>
        <property name="connection.password"></property>

        
        <property name="connection.pool_size">1</property>

        
        <property name="current_session_context_class">thread</property>

        
        <property name="dialect">org.hibernate.dialect.MySQLDialect</property>

        
        <property name="show_sql">true</property>

        
        <property name="hbm2ddl.auto">create</property>

        <mapping resource="Person.hbm.xml"/>

    </session-factory>

</hibernate-configuration>

Person.hbm.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC
        "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
        "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping>

    <class name="Person" table="Persona">
        <property name="nome"/>
        <property name="cognome"/>
    </class>

</hibernate-mapping>

Ma quando tento di avviare Main.java viene lanciata questa eccezione:

Exception in thread "main" java.lang.NoClassDefFoundError: org/dom4j/DocumentException
        at hibernatetest.Main.main(Main.java:9)
Caused by: java.lang.ClassNotFoundException: org.dom4j.DocumentException
        at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
        ... 1 more
Java Result: 1 

Qualche idea? Vi prego aiutatemi...