Update AGP to version 8.7.3

[rvandermeulen]

No description provided.

[bendk]

/taskcluster ci full

[rvandermeulen]

mozilla/glean#2680 has some prior discussion around this bustage

[bendk]

I think I know what's happening, but I need some gradle help to figure out a solution.

Before the AGP upgrade, I see gradle copying libmegazord.so to components/crashtest/android/build/intermediates/java_res/debugUnitTest/out/linux-x86-64/libmegazord.so. After the upgrade I don't see that file there anymore. That means when the app-services code tries to load the megazord library, it results in an UnsatisfiedLinkError.

I think the issue is with this line. This line was working for AGP 8.0, but stops working after 8.1.

That code seems pretty hacky/brittle to me and I think there are better ways to do this. Maybe something to do with a configuration or artifact? However, this is where my gradle knowledge ends. Can someone point me in the right direction?

[bendk]

After more investigation I think the issue is simply that AGP is excluding the .so file when it copies it.

I changed that line to point to an absolute/static directory on my machine and copied the expected contents there -- still no libmegazord.so. Then I tried adding foo.txt file in the directory and found that gradle did copy it over. Interestingly, libmegazord.dylib also worked, maybe that's why this is working on macs?

One guess I had was that the abiFilters property which was causing gradle to skip the library, but it doesn't seem so. I tried adjusting that property and also changing the subdirectory name to x86_64 which I don't think should be filtered by default, but still no success.
Any ideas on what I can try next? It's really feeling like I'm fighting against gradle here.

After I did this, I noticed that @badboy reported almost exactly the same issue when trying to upgrade Glean: mozilla/glean#2680 (comment)

[rvandermeulen]

Closing in favor of #6524 🎉