hg: jdk8u/jdk8u-dev/jdk: 8214687: Optimize Collections.nCopies().hashCode() and equals()

[shade at redhat.com]

Changeset: 00df83826341
Author:    tvaleev
Date:      2018-12-30 08:57 +0700
URL:       https://hg.openjdk.java.net/jdk8u/jdk8u-dev/jdk/rev/00df83826341

8214687: Optimize Collections.nCopies().hashCode() and equals()
Reviewed-by: igerasim, smarks

! src/share/classes/java/util/Collections.java
! test/java/util/Collections/NCopies.java