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

hi rag,
1) "Like this have couple projects for same application. Under two are Jars, under these two jars i have to update my changed jar. Then the file used in another project.
I can see other project which is using this jar is seeing in webdynpro explorer.
But two jar projects are not showing in webdynpro explorer, but they can see through Navigator after i imported into location NWDS."
here it shows that two are external library files having the jar file in the library folder.
2) "My request is i have changed the jar file from existing jar project and replaced it in local path where it is currently. but it didnt ask me the activity to deploy the same.
In this part , im not clear like how you were able to change the jar file without checking out the external lib dc , in the external lib, as i told earlier if it was checked out then activity will not be asked,
3) "so how do i update JAR file and delpoy into server. and where can i see the JAR file been updated in server? i am how to deploy into server."
JAR file cannot be deployed directly the way you deploy a DC or Webdyn pro project.
if you have changed the jar file , just build your webdynpro project that uses this jar file. and deploy the same . The new jar file gets deployed along with your webdynpro project.
if you want to deploy jar file, then you have to create a wedynpro development component of type j2EE-Server--library .
Then in Used Dcs add your external lib dcs assembly public part with build time dependency
go throught this blog you will know more about external jar file and its usage at run time.... and how it is getting deployed to the server.
https://scn.sap.com/people/bertram.ganz/blog/2008/11/24/how-to-use-external-jar-files-in-web-dynpro-development-components

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