@Test
public void testSimpleComponentLookup() throws Exception { 

  BlueprintURLContext bpURLc = new BlueprintURLContext (bundle, new Hashtable<String, String>());
  SimpleComponent sc = (SimpleComponent) bpURLc.lookup("blueprint:comp/comp1");
  assertNotNull (sc);
  String msg = sc.getIdMessage();
  assertEquals ("comp1 message wrong", "comp1_message", msg);
}