replace osgi bundle class loader

Activator

package org.gunn.osgi.web.demo;


import java.lang.reflect.Field;

import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;
import org.eclipse.osgi.framework.adaptor.ClassLoaderDelegate;
import org.eclipse.osgi.framework.internal.core.BundleHost;
import org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader;
import org.eclipse.osgi.internal.loader.BundleLoader;
import org.eclipse.osgi.internal.loader.BundleLoaderProxy;


@SuppressWarnings("restriction")
public class Activator implements BundleActivator {

  private static BundleContext context;

	static BundleContext getContext() {
		return context;
	}

	/*
	 * (non-Javadoc)
	 * @see org.osgi.framework.BundleActivator#start(org.osgi.framework.BundleContext)
	 */
	public void start(BundleContext bundleContext) throws Exception {
		Activator.context = bundleContext;
		BundleLoaderProxy bundleloaderProxy = ((BundleHost)bundleContext.getBundle()).getLoaderProxy(); //.getClass().getDeclaredField("loader");
		Field bundleLoaderField = bundleloaderProxy.getClass().getDeclaredField("loader");
		if(bundleLoaderField != null ){
			GunnOSGiWebClassLoaderDelegate delegate = new GunnOSGiWebClassLoaderDelegate((BundleHost) bundleContext.getBundle(), bundleloaderProxy);
			bundleLoaderField.setAccessible(true);
			bundleLoaderField.set(bundleloaderProxy, delegate);
		}
		

		bundleContext.getBundle().loadClass("org.gunn.osgi.web.demo.Activator");
		
		System.out.println(context.getBundle().getResources("META-INF/spring/spring.xml"));
	}

	/*
	 * (non-Javadoc)
	 * @see org.osgi.framework.BundleActivator#stop(org.osgi.framework.BundleContext)
	 */
	public void stop(BundleContext bundleContext) throws Exception {
		Activator.context = null;
	}
	
}

GunnOSGiWebClassLoaderDelegate

package org.gunn.osgi.web.demo;

import java.io.IOException;
import java.net.URL;
import java.util.Collection;
import java.util.Enumeration;
import org.eclipse.osgi.internal.loader.BundleLoader;
import org.eclipse.osgi.internal.loader.BundleLoaderProxy;
import org.eclipse.osgi.framework.adaptor.ClassLoaderDelegate;
import org.eclipse.osgi.framework.internal.core.BundleHost;
import org.osgi.framework.BundleException;

@SuppressWarnings("restriction")
public class GunnOSGiWebClassLoaderDelegate extends BundleLoader{

  
	protected GunnOSGiWebClassLoaderDelegate(BundleHost bundle,
			BundleLoaderProxy proxy) throws BundleException {
		super(bundle, proxy);
		
	}

	
	@Override
	public Class<?> findClass(String name) throws ClassNotFoundException {
		System.out.println("GunnOSGiWebClassLoaderDelegate findClass");
		return super.findClass(name);
	}


	@Override
	public Enumeration<URL> getResources(String name) throws IOException {
		System.out.println("i am in GunnOSGiWebClassLoaderDelegate getResources");
		return super.getResources(name);
	}
}