// Should be null after removal
        assertNull(crawlerContext.removeSitemaps());

        // Test with null
        crawlerContext.addSitemaps(null);
        assertNull(crawlerContext.removeSitemaps());

        // Test with empty array
        crawlerContext.addSitemaps(new String[0]);
        String[] emptyArray = crawlerContext.removeSitemaps();
        assertNotNull(emptyArray);