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Hibernate version: 3.1 
Mapping documents:
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
   "-//Hibernate/Hibernate Mapping DTD//EN"
   "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
    <class lazy="false"
    	optimistic-lock="version"
    	dynamic-update="true"
    	name="de.bitmanager.fairtracks.xmlimport.vo.Track" table="track" node="track">
		<id name="id" type="int" unsaved-value="-1"  node="@id">
            <column name="id" sql-type="int" not-null="true"/>
				<generator class="native">
                	<param name="sequence">sq_track</param>
            	</generator>
         </id>
        <version name="version" unsaved-value="negative"/>
		<property name="name" node="name" />
		<property name="url" node="url"/>
		<property name="skipUrl" node="skipUrl"/>
		<property name="rating" node="rating"/>
		<property name="creationDate" node="creationDate"/>
		<property name="albumPosition" node="albumPosition"/>
		<property name="referenceTrack" node="referenceTrack"/>
		<property name="tracklen" node="tracklen"/>
		<property name="isrc" node="isrc"/>
		<property name="trackArtist" node="trackArtist"/>
		<property name="trackTexter" node="trackTexter"/>
		<property name="trackComposer" node="trackComposer"/>
		<property name="trackProducer" node="trackProducer"/>
		<property name="setNumber" node="setNumber"/>
		<property name="publishingInfo" node="publishingInfo"/>
        <property name="updateTime" column="update_time" not-null="true"/>
        <property name="updateUser" column="update_user" not-null="true"/>
        <property name="tenantId" column="tenant_id" not-null="true"/>
          <filter
          name="tenantFilter"
          condition=":tenantId = tenant_id" />
    </class>
    <filter-def name="tenantFilter">
        <filter-param name="tenantId" type="integer"/>
    </filter-def>
</hibernate-mapping>
Code between sessionFactory.openSession() and session.close():
SAXReader reader = new SAXReader();
	      try {
			Document doc = reader.read(new File(path));
			Element root = doc.getRootElement();
			Element track = root.element("track");
			Session s;
			try {
				s = this.getBase().openSession();
				Transaction t = s.beginTransaction();
				s.persist( track );
				t.commit();
				s.close();
			} catch (ORException e) {
				e.printStackTrace();
			}
		} catch (DocumentException e) {
			e.printStackTrace();
		}
Full stack trace of any exception that occurs:
org.hibernate.MappingException: Unknown entity: tracks
	at org.hibernate.impl.SessionFactoryImpl.getEntityPersister(SessionFactoryImpl.java:610)
	at org.hibernate.impl.SessionImpl.getEntityPersister(SessionImpl.java:1246)
	at org.hibernate.engine.ForeignKeys.isTransient(ForeignKeys.java:180)
	at org.hibernate.event.def.AbstractSaveEventListener.getEntityState(AbstractSaveEventListener.java:459)
	at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:70)
	at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:38)
	at org.hibernate.impl.SessionImpl.firePersist(SessionImpl.java:590)
	at org.hibernate.impl.SessionImpl.persist(SessionImpl.java:568)
	at org.hibernate.impl.SessionImpl.persist(SessionImpl.java:572)
	at de.bitmanager.fairtracks.xmlimport.service.impl.TrackImportServiceImpl.readXML(TrackImportServiceImpl.java:89)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:324)
	at org.jboss.invocation.Invocation.performCall(Invocation.java:345)
	at org.jboss.ejb.StatefulSessionContainer$ContainerInterceptor.invoke(StatefulSessionContainer.java:584)
	at org.jboss.ejb.plugins.StatefulHASessionSynchronisationInterceptor.invoke(StatefulHASessionSynchronisationInterceptor.java:93)
	at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:149)
	at org.jboss.ejb.plugins.SecurityInterceptor.invoke(SecurityInterceptor.java:153)
	at org.jboss.ejb.plugins.StatefulSessionInstanceInterceptor.invoke(StatefulSessionInstanceInterceptor.java:315)
	at org.jboss.ejb.plugins.CallValidationInterceptor.invoke(CallValidationInterceptor.java:48)
	at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:106)
	at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:335)
	at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:166)
	at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:192)
	at org.jboss.ejb.plugins.CleanShutdownInterceptor.invoke(CleanShutdownInterceptor.java:264)
	at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:122)
	at org.jboss.ejb.SessionContainer.internalInvoke(SessionContainer.java:624)
	at org.jboss.ejb.Container.invoke(Container.java:873)
	at sun.reflect.GeneratedMethodAccessor149.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:324)
	at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:141)
	at org.jboss.mx.server.Invocation.dispatch(Invocation.java:80)
	at org.jboss.mx.server.Invocation.invoke(Invocation.java:72)
	at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:245)
	at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:644)
	at org.jboss.invocation.jrmp.server.JRMPInvokerHA.invoke(JRMPInvokerHA.java:163)
	at sun.reflect.GeneratedMethodAccessor148.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:324)
	at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:261)
	at sun.rmi.transport.Transport$1.run(Transport.java:148)
	at java.security.AccessController.doPrivileged(Native Method)
	at sun.rmi.transport.Transport.serviceCall(Transport.java:144)
	at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:460)
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:701)
	at java.lang.Thread.run(Thread.java:534)
Name and version of the database you are using:
Oracle 10g
XML-Document:
<?xml version="1.0" encoding="UTF-8"?>
<tracks>
  <track id="1412">
    <version>3</version>
    <name>XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX (Out Goes The Light)</name>
    <url>The_Animals_feat_Eric_Burdon_-_Boom_Boom_(Out_Goes_The_Light)12.mp3</url>
    <skipUrl>skip_The_Animals_feat_Eric_Burdon_-_Boom_Boom_(Out_Goes_The_Light)12.mp3</skipUrl>
    <creationDate>2006-03-28 13:33:42</creationDate>
    <albumPosition>12</albumPosition>
    <referenceTrack>false</referenceTrack>
    <tracklen>196</tracklen>
    <isrc>DE-A37-05-04301</isrc>
    <trackArtist>The Animals feat. Eric Burdon</trackArtist>
    <trackTexter>John Lee Hooker</trackTexter>
    <trackComposer>John Lee Hooker</trackComposer>
    <setNumber>1</setNumber>
    <publishingInfo>Conrad Music Inc., ARC Music Corp., Coachman Edition</publishingInfo>
    <updateTime>2006-03-30 15:29:59</updateTime>
    <updateUser>bierg</updateUser>
    <tenantId>1</tenantId>
  </track>
</tracks>
Hi, I'm trying the XML import with Hibernate but I get the error at the top. The same happens, if I use the element named "track". I have 2 questions. First, can I use the root element to save the whole file? Second, what could be wrong? Maybe my mapping file?
Thanx,
Jan