[jboss-user] [Beginners Corner] - Re: Jboss class laoding and newInstance

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Hers is the 3rd party lib source that I was changing, thjis is beofre I fixed the  Class.forName:

package message;

import java.util.HashMap;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * Generates objects based on configuration settings in MessageConfig
 * 
 * @author Michelle Osmond
 * @version 1.2
 */
public class MessagingFactory
{
    private static final Log log = LogFactory.getLog(MessagingFactory.class);

    public static HashMap classes = new HashMap();

    /**
     * Get an object to retrieve the user-session-id.
     */
    public static SessionIDRetriever getSessionIDRetriever() throws ClassNotFoundException, InstantiationException,
            IllegalAccessException
    {
        return (SessionIDRetriever) getNewInstance(MessageConfig.SESSION_ID_RETRIEVER);
    }

    /**
     * Get a message centre for the given browser session ID.
     */
    public static MessageCentre getMessageCentre(String sessionID) throws ClassNotFoundException,
            InstantiationException, IllegalAccessException
    {
        MessageStore store = (MessageStore) getNewInstance(MessageConfig.MESSAGE_STORE);
        store.initialise(sessionID);
        MessageCentre mc = new MessageCentreImpl();
        mc.setStore(store);
        return mc;
    }

    protected static Object getNewInstance(String name) throws ClassNotFoundException, InstantiationException,
            IllegalAccessException
    {
        Class retrieverClass = null;

        if (MessagingFactory.classes.containsKey(name))
        {
            retrieverClass = (Class) MessagingFactory.classes.get(name);
        }
        else
        {
            // get class name from config
            retrieverClass = Class.forName(MessageConfig.getConfigProperty(name));
            MessagingFactory.classes.put(name, retrieverClass);
        }

        // instantiate class
        if (log.isDebugEnabled())
        {
            log.debug("MessagingFactory returning instance for " + name + " of class " + retrieverClass.getName());
        }
        return retrieverClass.newInstance();
    }

}


As you can see I cannot do a normal cast due to how its cast in other places

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