hg: jigsaw/jake/jdk: Pre-generating ModuleDescriptor hashCode has direct and indirect benefits to startup

[mandy.chung at oracle.com]

Changeset: 01f184198a68
Author:    redestad
Date:      2016-11-27 14:48 +0100
URL:       http://hg.openjdk.java.net/jigsaw/jake/jdk/rev/01f184198a68

Pre-generating ModuleDescriptor hashCode has direct and indirect benefits to startup
Reviewed-by: alanb, mchung

! src/java.base/share/classes/java/lang/module/ModuleDescriptor.java
! src/java.base/share/classes/jdk/internal/misc/JavaLangModuleAccess.java
! src/java.base/share/classes/jdk/internal/module/Builder.java
! src/jdk.jlink/share/classes/jdk/tools/jlink/internal/plugins/SystemModuleDescriptorPlugin.java