[The_S]

Mit Class.forName oder wie meinst du das jetzt?

Hab mir einen eigenen ObjectInputStream geschrieben, damit gehts Problemlos (dein Ansatz interessiert mich trotzdem!)

import java.io.InputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectStreamClass;
import java.io.StreamCorruptedException;

public class OwnClassLoaderObjectInputStream extends ObjectInputStream {
	
	private ClassLoader myLoader = null;

	public OwnClassLoaderObjectInputStream(ClassLoader newLoader, InputStream theStream) throws IOException, StreamCorruptedException {
		
		super(theStream);
		myLoader = newLoader;
	}

	protected Class resolveClass(ObjectStreamClass osc) throws IOException,	ClassNotFoundException {
		
		Class theClass = null;
		try {
			theClass = Class.forName(osc.getName(), true, myLoader);
		} 
		catch (Exception e) {
			e.printStackTrace();
		}
		return theClass;
	}
}