How to update a jar file after change in manifest file and lib folder?

Question

I have hadoop-1.0.3.jar . I made few changes in lib folder(add external jar) and manifest file now i want to rebuild jar file with name hadoop-1.0.4.jar . How can I achieve this?

Answer 1

In the shell, run:

jar cvfm hadoop-1.0.4.jar Manifest.txt [list of files you want to package into your jar file]

You can run jar --help in the shell to check the different options available.

Basically, this particular command means:

-c: Create new jar file.

-v: Verbose output.

-f: Specify the packaged file name.

-m: Include the manifest file.

The rest should be fairly easy to understand (output name, manifest file, list of files to be packaged).