// Execute
        service.addExcludeUrlFilter(sessionId, urlList);

        // Verify
        verify(dataHelper).addExcludeUrlPattern(sessionId, "https://example.com/admin/.*");
        verify(dataHelper).addExcludeUrlPattern(sessionId, "https://example.com/private/.*");
        verify(dataHelper).addExcludeUrlPattern(sessionId, "https://example.com/secret/.*");
    }

    public void test_addExcludeUrlFilterEmptyList() {

     * .lang.String, java.lang.String)
     */
    @Override
    public void addExcludeUrlFilter(final String sessionId, final String url) {
        dataHelper.addExcludeUrlPattern(sessionId, url);
    }

    /*
     * (non-Javadoc)
     *
     * @see
     * org.codelibs.fess.crawler.service.impl.UrlFilterService#addExcludeUrlFilter(java
     * .lang.String, java.util.List)

    }

    /**
     * Adds an exclude URL pattern for the specified session.
     * @param sessionId the session ID
     * @param url the URL pattern to exclude
     */
    public synchronized void addExcludeUrlPattern(final String sessionId, final String url) {
        final List<Pattern> patternList = getExcludeUrlPatternList(sessionId);
        patternList.add(Pattern.compile(url));
    }

    /**