Problema para gerar o banco Pelo Hibernate

import org.hibernate.annotations.Entity;


@Entity
public class cliente {

String nome;
String senha;

public String getNome() {
	return nome;
}
public void setNome(String nome) {
	this.nome = nome;
}
public String getSenha() {
	return senha;
}
public void setSenha(String senha) {
	this.senha = senha;
}

}

import org.hibernate.cfg.Configuration;
import org.hibernate.tool.hbm2ddl.SchemaExport;

public class GeraBanco {

	
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Configuration cfg = new Configuration();
		
		cfg.configure();
		
		SchemaExport se = new SchemaExport(cfg);
		se.create(true, true);
	}

}

<?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>  
      <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>  
      <property name="hibernate.connection.url">jdbc:mysql://localhost/banco</property>  
      <property name="hibernate.connection.username">root</property>  
      <property name="hibernate.connection.password">ryouta</property>  
      <property name="hibernate.connection.pool_size">10</property>  
      <property name="show_sql">true</property>  
      <property name="dialect">org.hibernate.dialect.MySQLDialect</property>  
      <property name="hbm2ddl.auto">create</property>  
      <mapping class="cliente" />  
    </session-factory>  
</hibernate-configuration>