hg: jdk9/sandbox/jdk: 8156192: Provider#compute and #merge methods expect wrong permission & #compute ClassCastException even with wrong permission.

[chris.hegarty at oracle.com]

Changeset: cc9b31691df2
Author:    ascarpino
Date:      2016-08-17 16:03 -0700
URL:       http://hg.openjdk.java.net/jdk9/sandbox/jdk/rev/cc9b31691df2

8156192: Provider#compute and #merge methods expect wrong permission & #compute ClassCastException even with wrong permission.
Reviewed-by: mullan, jnimeh

! src/java.base/share/classes/java/security/Provider.java