You are giving null exception on line HibernateUtil.getFactory().openSession();
in the main method.
Here are the configuration and test files:
<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<!-- Database connection settings -->
<property name="connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="connection.url">jdbc:mysql://127.0.0.1:3306/pessoa</property>
<property name="connection.username">root</property>
<property name="connection.password"></property>
<!-- pool de conexão -->
<property name="connection.pool_size">1</property>
<property name="dialect">org.hibernate.dialect.MySQL5InnoDBDialect</property>
<property name="current_session_context_class">thread</property>
<property name="cache.provider_class">org.hibernate.cache.internal.NoCacheProvider</property>
<!-- mostra as querys -->
<property name="show_sql">false</property>
<property name="hbm2ddl.auto">validate</property>
<!-- <mapping resource="org/hibernate/tutorial/domain/Event.hbm.xml" /> -->
</session-factory>
</hibernate-configuration>
hibernate.cfg.xml:
The connection class (factory):
package util;
import org.hibernate.SessionFactory;
import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
import org.hibernate.cfg.Configuration;
import org.hibernate.service.ServiceRegistry;
public class HibernateUtil {
private static SessionFactory factory;
private static Configuration configuration;
public static SessionFactory initialize() {
try {
configuration=new Configuration().configure();
ServiceRegistry registro= new StandardServiceRegistryBuilder().applySettings(configuration.getProperties()).build();
factory=configuration.buildSessionFactory(registro);
System.out.println(">> HIBERNATE INICIADO COM SUCESSO.");
}
catch (Throwable e) {
System.out.println(">> FALHA NA INICIAÇÃO DO HIBERNATE.");
e.printStackTrace();
}
return factory;
}
public static SessionFactory getFactory() {
return factory;
}
}
The test class:
package util;
import org.hibernate.SessionFactory;
public class HibernateUtilTest {
public static void main(String args[]) {
HibernateUtil.getFactory().openSession();
}
}