Autorun JAR file on deployment

Hi,
I am trying to deploy a simple JAR file [a Single class file w/ a main function()] on OC4J server 10.1.3.4. I've wrapped the JAR as an EAR file in order to deploy it on the OC4J however when I start the OC4J the class file doesn't run on it's own even though it's defined as the Main class in the JAR manifest.
Please can someone point on any additional tasks that need to be performed in order to auto run a JAR file on deployment.
TIA
Shishir

Bumping it up.
-Shishir

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