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package biblioteca.model;

import java.util.HashSet;
import java.util.Set;

/**
*
* @author Alx
*/
public class Abonat {

    private int codAbonat;
    private String nume;
    private int codBiblioteca;
    private float penalitati;
    private Set<Carte> cartiImprumutate = new HashSet<Carte>(0);

    public Abonat(){

    }

    public int getCodAbonat(){
        return codAbonat;
    }

    public void setCodAbonat(int codAbonat){
        this.codAbonat = codAbonat;
    }

    public String getNume(){
        return nume;
    }

    public void setNume(String nume){
        this.nume = nume;
    }

    public int getCodBiblioteca(){
        return codBiblioteca;
    }

    public void setCodBiblioteca(int codBiblioteca){
        this.codBiblioteca = codBiblioteca;
    }

    public float getPenalitati(){
        return penalitati;
    }

    public void setPenalitati(float penalitati){
        this.penalitati = penalitati;
    }

    public Set<Carte> getCartiImprumutate(){
        return cartiImprumutate;
    }

    public void setCartiImprumutate(Set<Carte> cartiImprumutate){
        this.cartiImprumutate = cartiImprumutate;
    }

}

<?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="Abonat" table="abonat">
        <meta attribute="class-description">This class contains abonat details.</meta>
       <id name="id" >
            <generator class="native" />
        </id>
        <property name="codAbonat" type="int" not-null="true" column="codAbonat" />
        <property name="nume" type="string" length="45" not-null="true" column="nume" />
        <property name="codBiblioteca" type="int" not-null="true" column="codBiblioteca" />
        <property name="penalitati" type="float" not-null="true" column="penalitati" />
        <set name="carti" table="carte_abonat" cascade="all">
            <key column="codAbonat" />
            <many-to-many column="codCarte" unique="true" class="Carte" />
        </set>
    </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 name="sessionFactory">
        <property name="hibernate.bytecode.use_reflection_optimizer">false</property>
        <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
        <property name="hibernate.connection.autocommitt">true</property>
        <property name="hibernate.connection.url">jdbc:mysql://localhost/test</property>
        <property name="connection.username">root</property>
        <property name="connection.password">mami</property>
        <property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
        <property name="hibernate.current_session_context_class">thread</property>
  <mapping resource="biblioteca/model/Abonat.hbm.xml" />
</session-factory>
  </hibernate-configuration>

run:
log4j:WARN No appenders could be found for logger (org.hibernate.cfg.Environment).
log4j:WARN Please initialize the log4j system properly.
Initial SessionFactory creation failed.org.hibernate.InvalidMappingException: Could not parse mapping document from resource biblioteca/model/Abonat.hbm.xml
Exception in thread "main" java.lang.ExceptionInInitializerError
        at util.HibernateUtil.<clinit>(HibernateUtil.java:29)
        at biblioteca.BibliotecaApp.main(BibliotecaApp.java:49)
Caused by: org.hibernate.InvalidMappingException: Could not parse mapping document from resource biblioteca/model/Abonat.hbm.xml
        at org.hibernate.cfg.Configuration.addResource(Configuration.java:602)
        at org.hibernate.cfg.Configuration.parseMappingElement(Configuration.java:1621)
        at org.hibernate.cfg.Configuration.parseSessionFactory(Configuration.java:1589)
        at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1568)
        at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1542)
        at org.hibernate.cfg.Configuration.configure(Configuration.java:1496)
        at util.HibernateUtil.<clinit>(HibernateUtil.java:25)
        ... 1 more
Caused by: org.hibernate.MappingException: class Abonat not found while looking for property: id
        at org.hibernate.util.ReflectHelper.reflectedPropertyClass(ReflectHelper.java:97)
        at org.hibernate.mapping.SimpleValue.setTypeUsingReflection(SimpleValue.java:302)
        at org.hibernate.cfg.HbmBinder.bindSimpleId(HbmBinder.java:423)
        at org.hibernate.cfg.HbmBinder.bindRootPersistentClassCommonValues(HbmBinder.java:356)
        at org.hibernate.cfg.HbmBinder.bindRootClass(HbmBinder.java:295)
        at org.hibernate.cfg.HbmBinder.bindRoot(HbmBinder.java:166)
        at org.hibernate.cfg.Configuration.add(Configuration.java:702)
        at org.hibernate.cfg.Configuration.addInputStream(Configuration.java:537)
        at org.hibernate.cfg.Configuration.addResource(Configuration.java:599)
        ... 7 more
Caused by: java.lang.ClassNotFoundException: Abonat
        at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Class.java:169)
        at org.hibernate.util.ReflectHelper.classForName(ReflectHelper.java:123)
        at org.hibernate.util.ReflectHelper.reflectedPropertyClass(ReflectHelper.java:93)
        ... 15 more
Java Result: 1
BUILD SUCCESSFUL (total time: 0 seconds)