Review request for JDK-8139884: Use privileged blocks when working with class loaders

[Attila Szegedi]

Please review JDK-8139884 "Use privileged blocks when working with class 
loaders" at <http://cr.openjdk.java.net/~attila/8139884/webrev.jdk9> for 
<https://bugs.openjdk.java.net/browse/JDK-8139884>

Thanks,
  Attila.