return new URL("plugin:" + id + "!" + resourceName);
return new URL("plugin:" + id + "!/" + resourceName);
	public final URL getResource(String resourceName) {		try {			final JarFile jarFile = getJar(null);			final JarEntry entry = jarFile.getJarEntry(resourceName);			if (entry == null) {				return null;			} else {				final String id = descriptor.getId();				return new URL("plugin:" + id + "!" + resourceName);			}		} catch (IOException ex) {			return null;		}	}