Java already does this AFAIK. If you use a GC that supports class unloading (all the new ones do). Unused classes can be unloaded from RAM and it's like they d

Java already does this AFAIK. If you use a GC that supports class unloading (all the new ones do). Unused classes can be unloaded from RAM and it's like they don't exist. The executable is still huge but lower memory and CPU cache footprint.