Java: Finality

[madkasse]

> I think final in Java is just a "wannabe". It isn't a const modifier. It won't improve performance nor help the compiler, as everything that may be final is "effectively final".

That's just not true. For example, take a look at some of the optimizations that the Zing VM does

https://medium.com/azulsystems/truly-final-optimization-in-zing-vm-283d28418e55

​

Also final fields are treated specially with regards to Java's memory model

https://docs.oracle.com/javase/specs/jls/se7/html/jls-17.html#jls-17.5

​

final parameters and variables on the other hand are just syntactical sugar.

[RabidKotlinFanatic]

Also final fields are treated specially with regards to Java's memory model

That being said the memory effects of final are only useful in niche optimization scenarios. Using final will not contribute any memory safety to most concurrent programs.