hg: jdk/sandbox: imported patch comments

[james.laskey at oracle.com]

Changeset: 7cb325557832
Author:    jlaskey
Date:      2019-08-08 11:06 -0300
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/7cb325557832

imported patch comments

! src/java.base/share/classes/java/util/Random.java
! src/java.base/share/classes/java/util/random/L128X256MixRandom.java
! src/java.base/share/classes/java/util/random/L32X64MixRandom.java
! src/java.base/share/classes/java/util/random/L64X1024MixRandom.java
! src/java.base/share/classes/java/util/random/L64X1024Random.java
! src/java.base/share/classes/java/util/random/L64X128MixRandom.java
! src/java.base/share/classes/java/util/random/L64X128Random.java
! src/java.base/share/classes/java/util/random/L64X256MixRandom.java
! src/java.base/share/classes/java/util/random/L64X256Random.java
! src/java.base/share/classes/java/util/random/RandomGenerator.java
! src/java.base/share/classes/java/util/random/RandomSupport.java
! src/java.base/share/classes/java/util/random/Xoshiro256StarStar.java