hg: jdk/sandbox: Merge

[michael.x.mcmahon at oracle.com]

Changeset: 66f05905d776
Author:    michaelm
Date:      2019-12-16 16:07 +0000
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/66f05905d776

Merge

! src/java.base/share/classes/module-info.java
- src/java.base/share/classes/sun/security/util/math/intpoly/FieldGen.jsh
- src/java.base/share/classes/sun/security/util/math/intpoly/IntegerPolynomialP256.java
- src/java.base/share/classes/sun/security/util/math/intpoly/IntegerPolynomialP384.java
- src/java.base/share/classes/sun/security/util/math/intpoly/IntegerPolynomialP521.java
- src/java.base/share/classes/sun/security/util/math/intpoly/P256OrderField.java
- src/java.base/share/classes/sun/security/util/math/intpoly/P384OrderField.java
- src/java.base/share/classes/sun/security/util/math/intpoly/P521OrderField.java
- src/java.base/share/classes/sun/security/util/math/intpoly/header.txt
- src/jdk.incubator.jpackage/macosx/classes/jdk/incubator/jpackage/internal/resources/background_dmg.png
- test/hotspot/jtreg/gc/startup_warnings/TestParallelScavengeSerialOld.java
- test/hotspot/jtreg/runtime/handshake/HandshakeWalkStackFallbackTest.java