hg: jdk/sandbox: Merge

[markus.gronlund at oracle.com]

Changeset: e17143e28542
Author:    mgronlun
Date:      2019-09-21 12:10 +0200
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/e17143e28542

Merge

! src/hotspot/share/runtime/thread.cpp
! src/hotspot/share/runtime/thread.hpp
! src/hotspot/share/runtime/vmOperations.hpp
- src/java.base/share/native/libjava/ObjectInputStream.c
- src/java.base/share/native/libjava/ObjectOutputStream.c
! src/jdk.jfr/share/classes/jdk/jfr/internal/Repository.java
! src/jdk.jfr/share/classes/jdk/jfr/internal/SecuritySupport.java