Jboss class laoding and newInstance

[shareme]

I have a situation whereas I am using a 3rd party library that makes use of Class.forName

Pretty easy to change that ot use a context loader..

The issue is I also have a Class abc=null with the construction of:

abc.newInstance()

Any suggestions in how I should change this?

Thanks

[peterj]

newInstance() is a static method on that class. How is that method coded (post the source)?

[shareme]

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

[peterj]

I do not understand what your question is.

[shareme]

I have to change CLass.forName due needing it in Jboss context class loader

The other instance where I get no class loaders found is the newInstance