Cannot find class in jar

Hi,
I have a single application and I wanted to employ logging in that application. Here is my folder structure
root-
|-com
| |-xyz
| |-Application
|-lib
| |-log4j-1.2.11.jar
When I run this with the command java -cp lib/log4j-1.2.11.jar;.; com.xyz.Application, it works fine.
But, when I jar the application with its manifest file looking as
Manifest-Version: 1.0
Class-Path: lib/log4j-1.2.11.jar
Main-Class: com.xyz.Applicationand the command as java -jar application.jar it gives me a Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/log4j/Logger
at com.xyz.Application.<clinit>(Application.java:20)Could any one please help me out over here?

Make this an absolute path, not relative.
Class-Path: lib/log4j-1.2.11.jarIt is a classpath, and needs to look like one.

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