public static Request getClassesRequest(String suiteName, Class<?>[] classes) {
    try {
      return (Request)Class.forName("org.junit.internal.requests.ClassesRequest")
                    .getConstructor(new Class[]{String.class, Class[].class})
                    .newInstance(new Object[]{suiteName, classes});
    }
    catch (Exception e) {
      e.printStackTrace();
      return null;
    }
  }
public static Request getClassesRequest(String suiteName, Class<?>[] classes)