Prorblem using class-path in manifest.mf

[Manoj Gundawar]

Hi,
Our weblogic server (8.1 sp3) classpath refers to spring 1.2
But my app uses spring 1.1. So I am trying to set the class-Path in my EAR so that it loads the spring from my EAR and not from server lib. But it is not working.
My class path setting in Manifest.mf are:
----------------------------------
Manifest-Version: 1.0
Class-Path: APP-INF/lib/spring.jar
-------------------------------------
spring.jar is inside APP-INF/lib (and APP-INF at the root of EAR)

Is this not supported by weblogic 8.1?

Any help?

Thanks,
Manoj