This is jopt-simple 5.0.3. Reproduction:

1. `git clone https://github.com/jopt-simple/jopt-simple`
2. `git checkout jopt-simple-5.0.3` (commithash `b52b94611dba126a8236a10277d15676e31ab5f6`)
3. Dump the contents of the `git` tree into `third_party/java/jopt-simple`
4. Keep the existing, trivial `BUILD` file
5. Remove the src/test and src/site directories.