persistence.xml vacío

persistence.xml

<?xml version="1.0" encoding="UTF-8" ?>
<persistence xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://java.sun.com/xml/ns/persistence
             http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"
             version="2.0" xmlns="http://java.sun.com/xml/ns/persistence">

  <persistence-unit name="aplicacion">
    <properties>
        <property name="javax.persistence.jdbc.driver" value="" />
        <property name="javax.persistence.jdbc.url" value="" />
        <property name="javax.persistence.jdbc.user" value="" />
        <property name="javax.persistence.jdbc.password" value="" />
        <property name="hibernate.dialect" value="" />
        <property name="hibernate.hbm2ddl.auto" value="" />
    </properties>
  </persistence-unit>

</persistence>

thanks bro