<?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="test.Message" table="messages">
      <id name="id" column="id" type="long">
         <generator class="native"/>
      </id>
      <property name="text" type="string" />
   </class>
</hibernate-mapping>

<?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="hibernate.connection.username">root</property>
    <property name="hibernate.connection.password">free</property>
    <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
    <property name="hibernate.connection.url">jdbc:mysql://localhost/test</property>
    <property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
    <property name="hibernate.show_sql">true</property>
    <mapping resource="test/Message.hbm.xml"/>
  </session-factory>
</hibernate-configuration>

package test;

public class Message {

   private int id;
   private String text;

   public Message() {
   }

   public int getId() {
      return id;
   }

   public void setId(int id) {
      this.id = id;
   }

   public String getText() {
      return text;
   }

   public void setText(String text) {
      this.text = text;
   }
}

SEVERE: Error parsing XML: XML InputStream(3) Document is invalid: no grammar found.