JDK 8 was feature complete in June and there just isn't sufficient time
remaining to get agreement and feedback on an API to examine the caller
frames. To that end, I propose to restore the old unsupported
Reflection.getCallerClass(int) and that we will look to define a
standard API for JDK 9.
Webrev at:
http://cr.openjdk.java.net/~mchung/jdk8/webrevs/8025799/
It remains to be an unsupported API and JDK should not use this method
and it's not annotated with @CallerSensitive. I considered detecting if
this method is called by a system class (loaded by null loader) and
throw an error. I decided to minimize the compatibility risk in case if
there is any existing code added to the bootclasspath depending on this
private API.
Thanks
Mandy
