<?xml version="1.0" encoding="UTF-8" ?>
   <persistence xmlns="http://java.sun.com/xml/ns/persistence" version="1.0">
   <persistence-unit name="KundenbeispielJPA">
      <properties>
         <property name="hibernate.show_sql" value="true"/>
         <property name="hibernate.hbm2ddl.auto" value="create"/>
         <property name="hibernate.connection.driver_class" value="org.hsqldb.jdbcDriver"/>
         <property name="hibernate.connection.url" value="jdbc:hsqldb:hsql://localhost:1701/"/>
         <property name="hibernate.connection.username" value="sa"/>
         <property name="hibernate.connection.password" value=""/>
      </properties>
   </persistence-unit>
</persistence>

<?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.driver_class">org.hsqldb.jdbcDriver</property>
        <property name="hibernate.connection.url">jdbc:hsqldb:hsql://127.0.0.1:1701</property>
        <property name="hibernate.connection.username">sa</property>
        <property name="hibernate.dialect">org.hibernate.dialect.HSQLDialect</property>
        <property name="hibernate.session_factory_name">java:hibernate/SessionFactory</property>
    </session-factory>
</hibernate-configuration>

org.hibernate.console.HibernateConsoleRuntimeException: Could not load JPA Configuration
  org.hibernate.console.HibernateConsoleRuntimeException: Could not create JPA based Configuration
    org.hibernate.console.HibernateConsoleRuntimeException: Could not create JPA based Configuration
    java.lang.reflect.InvocationTargetException: <no message>
    javax.persistence.PersistenceException: [PersistenceUnit: KundenbeispielJPA] class or package not found
    java.lang.ClassNotFoundException: [color=red]bin.[/color]de.xyz.model.Kunden

package de.xyz.model;

// Generated 17.04.2007 14:21:10 by Hibernate Tools 3.2.0.b9

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;

/**
* Kunden generated by hbm2java
*/
@Entity
@Table(name = "KUNDEN", schema = "PUBLIC")
public class Kunden implements java.io.Serializable {

   private static final long serialVersionUID = 3887336267590432399L;

   private Long id;

   private String vorname;

   private String nachname;

   public Kunden() {
   }

   public Kunden(Long id) {
      this.id = id;
   }

   public Kunden(Long id, String vorname, String nachname) {
      this.id = id;
      this.vorname = vorname;
      this.nachname = nachname;
   }

   @Id
   @Column(name = "ID", precision = 646456993, scale = 0)
   public Long getId() {
      return this.id;
   }

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

   @Column(name = "VORNAME", length = 50)
   public String getVorname() {
      return this.vorname;
   }

   public void setVorname(String vorname) {
      this.vorname = vorname;
   }

   @Column(name = "NACHNAME", length = 50)
   public String getNachname() {
      return this.nachname;
   }

   public void setNachname(String nachname) {
      this.nachname = nachname;
   }

}