hg: jdk8u/jdk8u-dev/jdk: 8141491: Unaligned memory access in Bits.c

[david.buck at oracle.com]

Changeset: 8f2ece9973d2
Author:    dbuck
Date:      2018-12-03 07:31 -0500
URL:       http://hg.openjdk.java.net/jdk8u/jdk8u-dev/jdk/rev/8f2ece9973d2

8141491: Unaligned memory access in Bits.c
Summary: Introduce alignment-safe Copy::conjoint_swap and JVM_CopySwapMemory
Reviewed-by: mikael, dholmes

! make/mapfiles/libjava/mapfile-vers
! src/share/classes/java/nio/Bits.java
! src/share/javavm/export/jvm.h
! src/share/native/java/nio/Bits.c