@lanodan All those files have source equivalents now*. It's definitely very strange that binaries were put there instead of just compiling during the build. Both csharptest and javaversion are tiny but compiled with ancient toolchains which means it's very annoying to reproduce them exactly. Auditing is quite easy: `javap -p -c` and `ikdasm` (from mono) can show the very few instructions making up those files – there's nothing funny going on there.
* Concerning (2023!): https://lists.gnu.org/archive/html/bug-gettext/2023-02/msg00016.html