};

        String[] result = JvmUtil.filterJvmOptions(args);
        assertEquals(5, result.length);
        assertEquals("-server", result[0]);
        assertEquals("-Xms1g", result[1]);
        assertEquals("-Xmx4g", result[2]);
        assertEquals("invalid:pattern", result[3]);
        assertEquals("-XX:+UnlockExperimentalVMOptions", result[4]);
    }

    @Test

        setupVirtualHostHelper();

        Boolean result = invokeIsValidVirtualHostPath("");
        assertTrue("Empty path should be valid (default host)", result);
    }

    @Test
    public void test_isValidVirtualHostPath_nullPath() throws Exception {
        setupVirtualHostHelper();

        Boolean result = invokeIsValidVirtualHostPath(null);

        QueryContext context = new QueryContext("test", false);
        QueryBuilder result = booleanQueryCommand.execute(context, booleanQuery, 1.0f);

        assertNotNull(result);
        assertTrue(result instanceof BoolQueryBuilder);

        BoolQueryBuilder boolResult = (BoolQueryBuilder) result;
        assertTrue(boolResult.hasClauses());
    }

    }

    @Override
    protected <RESULT extends FileConfig> RESULT createEntity(Map<String, Object> source, Class<? extends RESULT> entityType) {
        try {
            final RESULT result = entityType.newInstance();
            result.setAvailable(DfTypeUtil.toBoolean(source.get("available")));
            result.setBoost(DfTypeUtil.toFloat(source.get("boost")));

        method.setAccessible(true);

        String result = (String) method.invoke(keyMatchHelper, "JAVA");
        assertEquals("java", result);

        result = (String) method.invoke(keyMatchHelper, "Mixed_Case");
        assertEquals("mixed_case", result);

        result = (String) method.invoke(keyMatchHelper, (String) null);
        assertNull(result);

        result = (String) method.invoke(keyMatchHelper, "");

    }

    @Override
    protected <RESULT extends WebConfig> RESULT createEntity(Map<String, Object> source, Class<? extends RESULT> entityType) {
        try {
            final RESULT result = entityType.newInstance();
            result.setAvailable(DfTypeUtil.toBoolean(source.get("available")));
            result.setBoost(DfTypeUtil.toFloat(source.get("boost")));

    }

    @Override
    protected <RESULT extends SearchLog> RESULT createEntity(Map<String, Object> source, Class<? extends RESULT> entityType) {
        try {
            final RESULT result = entityType.newInstance();
            result.setAccessType(DfTypeUtil.toString(source.get("accessType")));
            result.setClientIp(DfTypeUtil.toString(source.get("clientIp")));
            result.setHitCount(DfTypeUtil.toLong(source.get("hitCount")));

        Set<RequestData> result = crawlerThread.getAnchorSet("");
        assertNull(result, "getAnchorSet should return null for blank string");

        result = crawlerThread.getAnchorSet("   ");
        assertNull(result, "getAnchorSet should return null for whitespace string");
    }

    /**
     * Test getAnchorSet with list of URLs
     */
    @Test
    public void test_getAnchorSet_withList() {

        entity.setName("test name");

        RenderDataUtil.register(data, "entity", entity);

        Object result = data.getDataMap().get("entity");
        assertNotNull(result);
        assertTrue(result instanceof Map);
        @SuppressWarnings("unchecked")
        Map<String, Object> resultMap = (Map<String, Object>) result;
        assertEquals("test name", resultMap.get("name"));
    }

    @Test

        // Execute
        LoginCredential result = authenticator.getLoginCredential();

        // Verify
        assertNotNull(result);
        assertEquals(expectedCredential, result);
        assertEquals("testuser", ((TestLoginCredential) result).getUsername());
        assertEquals("testpass", ((TestLoginCredential) result).getPassword());
    }

    @Test