struts - tiles definition not reflecting for a JSP

[priya@tcs]

Hi everyone, I am struggling with this problem since 2 weeks..I will be thankful to you if u can tell me the solution...the problem is :

In my tiles-defs.xml, all the definitions are working fine but for only one jsp, its not getting reflected. I want my jsp to extend another JSP to display common menu and header. I added the below definition in the xml but its not working...

<definition name="requestDelete" extends="standardLayout">
<put name="content" value="/jsp/volumes/requestDelete.jsp" />
<put name="title" type="string" value="Request" />
</definition>

Already the below definitions are present in the xml and they are working fine...but the one i added is not working

<definition name="requestCreate" extends="standardLayout">
<put name="content" value="/jsp/volumes/requestCreate.jsp" />
<put name="title" type="string" value="Request" />
</definition>
<definition name="requestView" extends="standardLayout">
<put name="content" value="/jsp/volumes/requestView.jsp" />
<put name="title" type="string" value="Request" />
</definition>

Please someone help me to find out the solution..