I am creating a custom plugin which has references to 3rd party jars like xmlbe

I am creating a custom plugin which has references to 3rd party jars like xmlbeans, asis-axiom jars etc., I created a plugin project and then created a smart service.
I checked some sample plugins in the forum that has 3rd party dependencies ( for example Base64 Conversion Utilities - has dependency on castor). They just place the 3rd party jars under META-INF / lib and has a plain manifest file that contains only Manifest Version attribute.
I followed the same approach and placed my dependent jars in the META-INF/lib folder and there is a Manifest.MF file under META-INF with just version property.
I deployed this plugin jar , but it didnt work. I got NoClassDefFound Exception always.

I tried adding my depdendency jars in "ClassPath" attribute in Manifest.MF and my manifest now looked like:
Manifest-Version: 1.0
Main-Class:
Class-Path: schemaorg_apache_xmlbeans.jar apache-mime4j-core-0.7.2.jar axiom-api-1.2.13.jar axiom-dom-1.2.13.jar axiom-impl-1.2.1...

OriginalPostID-118374

OriginalPostID-118374