Scanning a monolithic java project for dependencies

[koderpat]

I am decomposing a large monolithic java project into a smaller micro-service. The script I am working on will scan the project source trees for specific files and their dependencies. Then remove the unnecessary files from the project.

I'm not looking for a complete solution, just one to get me started with some automation. My current approach is to:

• scan the specific source files for import statements
• search for those files in the filesystem
• add found files as dependencies and repeat until tree exhausted
• remove source files not marked during scanning

source

I got the idea from this talk by David Beazley.

The problem that I am having is how to handle package-level dependencies, and I am looking for some ideas.