Digester problem...ClassNotFoundException

[desenho]

Hi all,

I have a problem using the class com.sun.org.apache.commons.digester.Digester:

public class HibernateConfig {
 private String name;

 public String getName() {
 return name;
 }

 public void setName(String name) {
 this.name = name;
 }
}

And this method in another class

public Configuration digest() throws MappingException, ClassNotFoundException, IOException, SAXException {
 Digester digester = new Digester();

 digester.push(this);

 digester.addObjectCreate("classes/class", br.com.ze.configuration.HibernateConfig.class);
 digester.addBeanPropertySetter("classes/class/name");

 digester.addSetNext("classes/class", "addClass");

 HibernateConfigurationApplier hconf = null;
 if(xmlClassesConfigFile != null)
 hconf = (HibernateConfigurationApplier) digester.parse(xmlClassesConfigFile);
 else
 hconf = (HibernateConfigurationApplier) digester.parse(xmlClassesConfigInputStream);

 Configuration configuration = new Configuration();

 for(HibernateConfig clazz: hconf.classes)
 configuration.addClass( Class.forName(clazz.getName()) );

 return configuration.configure();
 }

And the following XML file:

<?xml version="1.0" encoding="UTF-8"?>

<classes>
 <class>
 <name>br.com.ze.common.model.Banco</name>
 </class>
 <class>
 <name>br.com.ze.common.model.Contrato</name>
 </class>
 <class>
 <name>br.com.ze.common.model.Produto</name>
 </class>
 <class>
 <name>br.com.ze.common.model.Segmento</name>
 </class>
</classes>

When I execute the following:

public static void main(String[] args) throws MappingException, FileNotFoundException, ClassNotFoundException, IOException, SAXException {
 Configuration conf = new HibernateConfigurationApplier("WebContent/WEB-INF/persistent-classes.xml").digest();
}

It runs just fine, but when I execute the same line in a javax.servlet.Filter I´ve done:

public void init(FilterConfig filterConfig) throws ServletException {
 Configuration config;
 try {
 config = new HibernateConfigurationApplier(filterConfig.getServletContext().getResourceAsStream("WEB-INF/persistent-classes.xml")).digest();
 } catch (Exception e) {
 throw new ServletException(e);
 }
}

I get this exception:

java.lang.ClassNotFoundException: No ClassLoaders found for: br.com.ze.configuration.HibernateConfig
at org.jboss.mx.loading.LoadMgr3.beginLoadTask(LoadMgr3.java:212)
at org.jboss.mx.loading.RepositoryClassLoader.loadClassImpl(RepositoryClassLoader.java:521)
at org.jboss.mx.loading.RepositoryClassLoader.loadClass(RepositoryClassLoader.java:415)
at java.lang.ClassLoader.loadClass(Unknown Source)
at com.sun.org.apache.commons.digester.ObjectCreateRule.begin(ObjectCreateRule.java:252)
at com.sun.org.apache.commons.digester.Rule.begin(Rule.java:200)
at com.sun.org.apache.commons.digester.Digester.startElement(Digester.java:1273)
at org.apache.xerces.parsers.AbstractSAXParser.startElement(Unknown Source)
.
.
.

The exception is thrown at digester.parse()

I´m using Eclipse Europa, JAVA 6 and JBOSS 4.2.2

Any help??!?!?!
Thanks in advance.