Spring MDP not Consuming Message

Question

I am implementing Spring MDP + JMSTemplate to send and receive the message. The message send mechanism is working fine, however the MDP is not getting invoked. I tried testing the via plain receiver, and was able to retrieve the message, but not via MDP. What could be the problem? I can see the messages getting accumulated in the request queue, but somehow the MDP is not getting trigger. Am I missing anything here in configurations or something else needs to be taken care of?

Here's the Spring Config. The Java class to send and received are pretty much standard ones.

    <bean id="cookieRequestListener" class="com.text.jms.mq.mdp.RequestQueueMDP">
        <property name="logger" ref="mqLogger" />
        <property name="scoringEngine" ref="scoringEngine" />
        <property name="mqSender" ref="jmsMQSender" />
        </bean>

    <bean id="CookieRequestContainer" class="org.springframework.jms.listener.DefaultMessageListenerContainer">
        <property name="connectionFactory" ref="cachedConnectionFactory" />
        <property name="destination" ref="jmsRequestQueue" />
        <property name="messageListener" ref="cookieRequestListener" />
    </bean>

    <bean id="jmsConnectionFactory" class="org.springframework.jndi.JndiObjectFactoryBean">
        <property name="jndiTemplate">
            <ref bean="jndiTemplate" />
        </property>
        <property name="jndiName">
            <value>java:/jms/queueCF</value>
        </property>
    </bean>

    <!-- A cached connection to wrap the Queue connection -->
    <bean id="cachedConnectionFactory" class="org.springframework.jms.connection.CachingConnectionFactory">
        <property name="targetConnectionFactory" ref="jmsConnectionFactory"/>
        <property name="sessionCacheSize" value="10" />
    </bean>


    <!-- jms Request Queue Configuration -->
    <bean id="jmsRequestQueue" class="org.springframework.jndi.JndiObjectFactoryBean">
        <property name="jndiTemplate">
            <ref bean="jndiTemplate" />
        </property>
        <property name="jndiName">
            <value>java:/jms/cookieReqQ</value>
        </property>
    </bean>

    <!-- jms Response Queue Configuration -->
    <bean id="jmsResponseQueue" class="org.springframework.jndi.JndiObjectFactoryBean">
        <property name="jndiTemplate">
            <ref bean="jndiTemplate" />
        </property>
        <property name="jndiName">
            <value>java:/jms/cookieResQ</value>
        </property>
    </bean>

    <bean id="jmsJMSTemplate" class="org.springframework.jms.core.JmsTemplate" >
        <property name="connectionFactory" ref="cachedConnectionFactory" />
    </bean>

    <!-- jms MQ Utility -->
    <bean id="jmsMQSender" class="com.text.jms.util.MQSender">
        <property name="jmsTemplate">
            <ref bean="jmsJMSTemplate"></ref>
        </property>
        <property name="defaultDestination">
            <ref bean="jmsRequestQueue" />
        </property>
        <property name="logger" ref="mqLogger" />
    </bean>