JMH

[Jakob Jenkov via Digitalmars-d]

>> I can only suspect, but I think they use maven to collect all 
>> functions that use @Benchmark. And this leads to the problem 
>> the unittest library proposal for phobos had.
>
> No that is the job of the Java compiler.

Actually, annotations in Java can be both read at runtime or 
compile time.
As far as I know, you cannot hook into the compiler to check for 
annotations,
so most Java frameworks scan for annotations at startup time. Not 
that it
matters much, anyways.