Yes..I too read the same and in a blind room some days.But the fact is the commit is still pending
@Daniel Kurka recently abonded
the code https://gwt-review.googlesource.com/#/c/2220/
if you want you can super source from here
https://gwt-review.googlesource.com/#/c/2220/4/user/super/com/google/gwt/emul/java/lang/Class.java
or
as @Andrea commented we have to wait for sdk 2.6 :)