/** The rule ID. */
    protected String ruleId;

    /** The response processor. */
    protected ResponseProcessor responseProcessor;

    /** The crawler container. */
    @Resource
    protected transient CrawlerContainer crawlerContainer;

    /**
     * Constructs a new AbstractRule.
     */
    public AbstractRule() {
        // NOP
    }

    /**
     * Registers this rule with the {@link RuleManager}.

        ois.close();

        // Verify
        assertEquals("serializeRule", deserializedRule.getRuleId());
        assertNotNull(deserializedRule.getResponseProcessor());

        // Note: crawlerContainer is transient (marked with @Resource)
        // so it won't be serialized
        assertNull(deserializedRule.crawlerContainer);
    }

    /**
     * Test with null CrawlerContainer
     */