[tomcat] problème de configuration hibernate

Bonjour j'utilise tomcat 5.5 et j'ai un petit problème de config d'hibernate.

j'ai créé un projet qui permet de discuter avec ma base en utilisant hibernate. ca fonctionne bien.

par contre lorsque j'essaie de discuter avec ma base via mon appli web (qui fait appel au projet précédent) ca ne fonctionne pas.....

voici mon erreur :

Code:

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Tiles definition factory found for request processor ''.
loginAction
Hibernate 3.2.0
hibernate.properties not found
Bytecode provider name : cglib
using JDK 1.4 java.sql.Timestamp handling
configuring from resource: /hibernate.cfg.xml
Configuration resource: /hibernate.cfg.xml
Error parsing XML: /hibernate.cfg.xml(2) Document is invalid: no grammar found.
Error parsing XML: /hibernate.cfg.xml(2) Document root element "hibernate-configuration", must match DOCTYPE root "null".
"Servlet.service()" pour la servlet action a généré une exception
java.lang.ExceptionInInitializerError
	at com.aig.printing.administration.service.AdministrationService.execute(AdministrationService.java:33)
	at com.aig.printing.administration.action.ListeAdministrationUserAction.execute(ListeAdministrationUserAction.java:91)
	at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:413)
	at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:225)
	at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1858)
	at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:446)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
	at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
	at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
	at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
	at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.RuntimeException: Problème de configuration : invalid configuration
	at com.aig.aigme.fr.utils.db.HibernateUtil.<clinit>(HibernateUtil.java:22)
	... 22 more
Caused by: org.hibernate.MappingException: invalid configuration
	at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1411)
	at org.hibernate.cfg.Configuration.configure(Configuration.java:1352)
	at org.hibernate.cfg.Configuration.configure(Configuration.java:1338)
	at com.aig.aigme.fr.utils.db.HibernateUtil.<clinit>(HibernateUtil.java:17)
	... 22 more
Caused by: org.xml.sax.SAXParseException: Document is invalid: no grammar found.
	at org.apache.xerces.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source)
	at org.apache.xerces.util.ErrorHandlerWrapper.error(Unknown Source)
	at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
	at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
	at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown Source)
	at org.apache.xerces.impl.XMLNSDocumentScannerImpl$NSContentDispatcher.scanRootElementHook(Unknown Source)
	at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)
	at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
	at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
	at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
	at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
	at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
	at org.dom4j.io.SAXReader.read(SAXReader.java:465)
	at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1408)
	... 25 more

je pense que j'ai un soucis avec la config de tomcat mais je ne sais pas ou....

voici ma config hibernate:

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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-configuration
    PUBLIC "-//Hibernate/Hibernate Configuration DTD//EN"
    "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
 
<hibernate-configuration>
    <session-factory >
 
		<!-- local connection properties -->
		<property name="hibernate.connection.url">jdbc:oracle:thin:@1633r0j:1521:edicadev</property>
		<property name="hibernate.connection.driver_class">oracle.jdbc.driver.OracleDriver</property>
		<property name="hibernate.connection.username">edica</property>
		<property name="hibernate.connection.password">edica</property>
 
 
		<!-- dialect for Oracle (any version) -->
        <property name="dialect">org.hibernate.dialect.OracleDialect</property>
 
        <property name="hibernate.show_sql">false</property>
        <property name="hibernate.transaction.factory_class">org.hibernate.transaction.JDBCTransactionFactory</property>
 
        <!-- fichiers de mapping -->
		<mapping resource="Cat.hbm.xml"/>
 
    </session-factory>
</hibernate-configuration>

merci d'avance.