hg: jdk-updates/jdk11u: 8027434: "-XX:OnOutOfMemoryError" uses fork instead of vfork

[kevin.walls at oracle.com]

Changeset: 4a14b74959af
Author:    mchinnathamb
Date:      2018-10-26 16:09 +0530
URL:       http://hg.openjdk.java.net/jdk-updates/jdk11u/rev/4a14b74959af

8027434: "-XX:OnOutOfMemoryError" uses fork instead of vfork
Reviewed-by: dholmes, iklam

! src/hotspot/os/aix/os_aix.cpp
! src/hotspot/os/bsd/os_bsd.cpp
! src/hotspot/os/linux/os_linux.cpp
! src/hotspot/os/solaris/os_solaris.cpp
! src/hotspot/os/windows/os_windows.cpp
! src/hotspot/share/runtime/os.hpp
! src/hotspot/share/utilities/vmError.cpp