IllegalAccessException,
          InvocationTargetException,
          FactoryMethodReturnsNullException {
    if (!Modifier.isAbstract(cls.getModifiers())) {
      nullPointerTester.testConstructors(cls, visibility);
    }
    nullPointerTester.testStaticMethods(cls, visibility);
    if (hasInstanceMethodToTestNulls(cls, visibility)) {
      Object instance = instantiate(cls);
      if (instance != null) {

        assertEquals("site", QueryFieldConfig.SITE_FIELD);
        assertEquals("inurl", QueryFieldConfig.INURL_FIELD);
        assertEquals("score", QueryFieldConfig.SCORE_SORT_VALUE);
    }

    public void test_constructor() {
        // Test that constructor creates a valid instance
        QueryFieldConfig config = new QueryFieldConfig();
        assertNotNull(config);

            ComponentUtil.register(originalJobHelper, "jobHelper");
        }

        super.tearDown();
    }

    // Test constructor and initial state
    public void test_constructor() {
        assertNotNull(execJob);
        assertNull(execJob.jobExecutor);
        assertNull(execJob.sessionId);
        assertTrue(execJob.useLocalFesen);
        assertNull(execJob.logFilePath);