hg: jdk8u/jdk8u-dev/jdk: 8202261: (fc) FileChannel.map and RandomAccessFile.setLength should not preallocate space

[rob.mckenna at oracle.com]

Changeset: a2361ab40be8
Author:    robm
Date:      2018-10-05 14:05 -0700
URL:       http://hg.openjdk.java.net/jdk8u/jdk8u-dev/jdk/rev/a2361ab40be8

8202261: (fc) FileChannel.map and RandomAccessFile.setLength should not preallocate space
Reviewed-by: coffeys

! make/mapfiles/libnio/mapfile-linux
! make/mapfiles/libnio/mapfile-macosx
! make/mapfiles/libnio/mapfile-solaris
! src/share/classes/sun/nio/ch/FileChannelImpl.java
! src/share/classes/sun/nio/ch/FileDispatcher.java
! src/solaris/classes/sun/nio/ch/FileDispatcherImpl.java
! src/solaris/native/java/io/io_util_md.c
! src/solaris/native/sun/nio/ch/FileChannelImpl.c
! src/solaris/native/sun/nio/ch/FileDispatcherImpl.c
! src/windows/classes/sun/nio/ch/FileDispatcherImpl.java
! src/windows/native/sun/nio/ch/FileChannelImpl.c
! src/windows/native/sun/nio/ch/FileDispatcherImpl.c