Review Request: JDK-8179645: java.util.jar.Packer.newPacker and newUnpacker fails when running with security manager

[Mandy Chung]

java.util.jar.Packer.newPacker and newUnpacker fails when running
with security manager.  It is an existing bug but we uncovers this
only now because a new RuntimePermission “accessSystemModules” is
required to access resources from the system image.

Webrev:
http://cr.openjdk.java.net/~mchung/jdk9/webrevs/8179645/webrev.00/index.html

Mandy