jar file upload and transport in Java webdynpro

Hi,

I wanted to change do small chnage to the existing jar file in webdynpro jave application. I did change the jar file.

Question: Please let me know how can i include this jar file into existing application back and how the transport happend for the same?

do we need to copy paste the ne jar file(updated jar file) in local drive where it exists and do little chnage the application will create an activity. then move to test and prd  will that move the jar file as well?

appreciate your prompt help.

Thanks

Rag