hg: jdk/sandbox: 4 new changesets

[chris.hegarty at oracle.com]

Changeset: 719023085a08
Author:    pconcannon
Date:      2020-06-03 14:31 +0100
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/719023085a08

8245658: Arrays.java has two occurrences of bad unicode constants in Javadoc
Summary: This patch fixes two instances of bad unicode formatting in the javadoc for Arrays.java where the null character constant was incorrectly specified.
Reviewed-by: jlaskey, lancea, prappo, dfuchs
Contributed-by: Conor Cleary <conor.cleary at oracle.com>

! src/java.base/share/classes/java/util/Arrays.java

Changeset: 38813578202f
Author:    neliasso
Date:      2020-06-03 15:26 +0200
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/38813578202f

8244658: Remove dead code in code cache sweeper
Reviewed-by: mdoerr, kvn

! src/hotspot/share/runtime/sweeper.cpp
! src/hotspot/share/runtime/sweeper.hpp
! src/hotspot/share/runtime/vmOperations.cpp
! src/hotspot/share/runtime/vmOperations.hpp

Changeset: a91783c0977a
Author:    neliasso
Date:      2020-06-03 15:26 +0200
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/a91783c0977a

8244660: Code cache sweeper heuristics is broken
Reviewed-by: thartmann, rehn

! src/hotspot/share/code/codeCache.cpp
! src/hotspot/share/compiler/compileBroker.cpp
! src/hotspot/share/compiler/compilerDefinitions.cpp
! src/hotspot/share/jfr/metadata/metadata.xml
! src/hotspot/share/jfr/periodic/jfrPeriodic.cpp
! src/hotspot/share/runtime/globals.hpp
! src/hotspot/share/runtime/mutex.hpp
! src/hotspot/share/runtime/mutexLocker.cpp
! src/hotspot/share/runtime/mutexLocker.hpp
! src/hotspot/share/runtime/sweeper.cpp
! src/hotspot/share/runtime/sweeper.hpp

Changeset: 5cf00ea9e479
Author:    neliasso
Date:      2020-06-03 15:26 +0200
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/5cf00ea9e479

8244278: Excessive code cache flushes and sweeps
Reviewed-by: neliasso
Contributed-by: Man Cao <manc at google.com>

! src/hotspot/share/runtime/sweeper.cpp