What optimizations does the java compiler not make when the variable is declared as Volotile?

Question

Java

Tell me what optimizations the Java compiler does not produce when declaring a variable as volotile.

Answer 1

The variable will definitely exist, there will be one for all threads, and all read-write operations for it will refer to it, and not to a local copy. Roughly speaking, there will be, in general, no optimizations
And yes, after all, volAtile, not volOtile