registryServiceTracker = new ServiceTracker(context,"org.eclipse.equinox.registry.IExtensionRegistry",this);
registryServiceTracker = new ServiceTracker(context,"org.eclipse.core.runtime.IExtensionRegistry",this);
	public void start(BundleContext context) throws Exception {		bundleContext = context;		processCommandLine();		registryServiceTracker = new ServiceTracker(context,"org.eclipse.equinox.registry.IExtensionRegistry",this);		registryServiceTracker.open();	}