Tomcat embedded et application

Bonjour,

Le code suivant lance un serveur Tomcat :

Code:

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import org.apache.catalina.Context;
import org.apache.catalina.Engine;
import org.apache.catalina.Host;
import org.apache.catalina.LifecycleException;
import org.apache.catalina.connector.Connector;
import org.apache.catalina.realm.MemoryRealm;
import org.apache.catalina.startup.Embedded;


public class CatStarter
{

    public static void main(String[] args)
    {
        Embedded embedded = new Embedded();
                
        MemoryRealm mem = new MemoryRealm();
        embedded.setRealm(mem);
        
        Engine baseEngine = embedded.createEngine();
        baseEngine.setName("vsjEngine");
        baseEngine.setDefaultHost("vsjHost");
        
        Host baseHost = embedded.createHost("vsjHost", "webapps");
        baseEngine.addChild(baseHost);
        
        Context rootContext = embedded.createContext("", "ROOT");
        baseHost.addChild(rootContext);
        
        
        Context managerContext = embedded.createContext("/manager", "manager");
        managerContext.setPrivileged(true);

/*                
        Context appliContext = embedded.createContext("/application", "application");
        appliContext.setPrivileged(true);
   
*/     
        baseHost.addChild(appliContext);
        
        embedded.addEngine(baseEngine);
        
        Connector httpConnector = embedded.createConnector((java.net.InetAddress) null, 8090, false);
        embedded.addConnector(httpConnector);
        
        try
        {
            embedded.start();
        }
        catch (Exception e)
        {
            e.printStackTrace();
            
            try
            {
                embedded.stop();
                embedded.destroy();
            }
            catch (LifecycleException e1)
            {
                e1.printStackTrace();
            }
        }
    }

}

Maintenant j'inclus l'application au serveur en ajoutant le code suivant :

Code:

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 Context appliContext = embedded.createContext("/application", "application");
appliContext.setPrivileged(true);

L'exécution de cette classe avec cet ajout, génère l'exeption suivante :

Code:

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org.apache.commons.logging.LogConfigurationException: org.apache.commons.logging.LogConfigurationException: No suitable Log constructor [Ljava.lang.Class;@54a328 for org.apache.commons.logging.impl.Log4JLogger (Caused by java.lang.NoClassDefFoundError: org/apache/log4j/Category) (Caused by org.apache.commons.logging.LogConfigurationException: No suitable Log constructor [Ljava.lang.Class;@54a328 for org.apache.commons.logging.impl.Log4JLogger (Caused by java.lang.NoClassDefFoundError: org/apache/log4j/Category))

Pourquoi ? :?

Merci. ;)