Bazel 6 example workspace

My team is currently using a Makefile with j2objc but we want to transition our build system to Bazel 6 and the j2objc example [here](https://github.com/google/j2objc/tree/master/examples/Contacts) hasn't changed in 5 years and I haven't been able to find more recent examples out on the Internet.

In particular, how to use Bazel's built in [j2objc_library](https://bazel.build/reference/be/objective-c#j2objc_library) rule with third-party jars like `androidx.annotations`.

Unfortunately all of my company's code is private so I can't share my bazel files.

I'm aware that Google uses Bazel/Blaze internally so I'm wondering if there's another Google open source project that is using j2objc that I can glean some insights from?