Code Migration issues from JBOSS (Java 6) to Websphere 8.5 (Java 6)

Error:

org.springframework.web.servlet.FrameworkServlet initServletBean Context initialization failed org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'messageSource' defined in ServletContext resource [/WEB-INF/searchcenterTLSencha-servlet.xml]: Initialization of bean failed; nested exception is java.lang.NullPointerException

XXXX-servlet.xml: (part of it)

<bean id="messageSource" class="org.springframework.context.support.ResourceBundleMessageSource">
    <property name="basenames">
        <list>
            <value>resources/messages</value>
            <value>resources/application</value>
        </list>
    </property>
</bean>

Please someone assist me here, its been 2 days I spent time on this, still not able to figure out.

Appreciate your help..