Comment by pjmlp

US navy has weapons targeting systems on some battleships implemented in Java with realtime GC, equally France has missile tracking systems, also implemented in Java with realtime GC, courtesy of PTC and Aonix.

https://www.militaryaerospace.com/defense-executive/article/...

https://www.lockheedmartin.com/en-us/products/aegis-combat-s...

https://vita.militaryembedded.com/1670-aonix-uss-bunker-hill...

Not all GC are born alike, and in real life there isn't "insert credit to continue".