String errorName;
            final Throwable cause = t.getCause();
            if (cause != null) {
                errorName = cause.getClass().getCanonicalName();
            } else {
                errorName = t.getClass().getCanonicalName();
            }
            final FailureUrl failureUrl = storeFailureUrl(crawlerContext, urlQueue, errorName, t);
            if (failureUrl != null) {

                return Collections.emptyList();
            }
        };
        ComponentUtil.register(webAuthenticationService, WebAuthenticationService.class.getCanonicalName());
        RequestHeaderService requestHeaderService = new RequestHeaderService() {
            @Override
            public List<RequestHeader> getRequestHeaderList(final String webConfigId) {

            try {
                client.close();
            } catch (final Exception e) {
                logger.warn("Failed to close {}.", client.getClass().getCanonicalName(), e);
            }
        });
    }

        super.setUp();
        jobHelper = new JobHelper();
        ComponentUtil.register(new SystemHelper(), "systemHelper");
        ComponentUtil.register(new MockJobLogBhv(), JobLogBhv.class.getCanonicalName());
    }

    public void test_register_with_null_scheduledJob() {
        try {
            jobHelper.register((ScheduledJob) null);
            fail("Should throw ScheduledJobException");

            // Expected
        }
    }

    public void test_getComponent_byClass_fromMap() {
        String testInstance = "test_instance";
        ComponentUtil.register(testInstance, String.class.getCanonicalName());

        String retrieved = ComponentUtil.getComponent(String.class);
        assertSame(testInstance, retrieved);
    }

    public void test_getComponent_byName_fromMap() {

        try {
            parser.parseArgument(args);
        } catch (final CmdLineException e) {
            System.err.println(e.getMessage());
            System.err.println("java " + ThumbnailGenerator.class.getCanonicalName() + " [options...] arguments...");
            parser.printUsage(System.err);
            return;
        }

        if (logger.isDebugEnabled()) {
            try {