8031359: Invocable.getInterface() works incorrectly if interface has default methods
Reviewed-by: attila, hannesw
ABCDEFGHIJKLMNOcw has super hashCode(): truecw has super equals(): truecw has no super getClass(): truecw has no super wait(): truer has no super run(): truer has super hashCode(): truer has super equals(): truer has no super getClass(): truer has no super wait(): true