karaf-2.2.x/archetypes/bundle/src/main/resources/archetype-resources/src/main/java/Activator.java

package ${package};

import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;

public class Activator implements BundleActivator {

    public void start(BundleContext context) {
        System.out.println("Starting the bundle");
    }

    public void stop(BundleContext context) {
        System.out.println("Stopping the bundle");
    }

}