hg: jdk/sandbox: Merge

[thomas.stuefe at gmail.com]

Changeset: 69c38b90014c
Author:    stuefe
Date:      2019-09-12 15:04 +0200
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/69c38b90014c

Merge

! src/hotspot/share/gc/g1/g1CollectedHeap.cpp
! src/hotspot/share/memory/filemap.cpp
! src/hotspot/share/runtime/os.hpp
- test/jdk/java/lang/invoke/findclass.security.policy
- test/jdk/java/nio/charset/coders/SJISMappingPropTest.java
- test/jdk/java/nio/charset/coders/SJISPropTest.java
- test/jdk/java/nio/charset/coders/ref.windows-31j