hg: jdk9/hs/hotspot: 8152949: Jigsaw crash when Klass in _fixup_module_field_list is unloaded

[lois.foltan at oracle.com]

Changeset: 5fa2ff32323a
Author:    lfoltan
Date:      2016-04-21 09:23 -0400
URL:       http://hg.openjdk.java.net/jdk9/hs/hotspot/rev/5fa2ff32323a

8152949: Jigsaw crash when Klass in _fixup_module_field_list is unloaded
Summary: During start up anonymous classes must be kept alive until after their mirror's module field is patched with java.base
Reviewed-by: coleenp, hseigel
Contributed-by: per.liden at oracle.com, stefan.karlsson at oracle.com

! src/share/vm/classfile/classLoaderData.cpp
! src/share/vm/classfile/classLoaderData.hpp
! src/share/vm/classfile/javaClasses.cpp
! src/share/vm/classfile/moduleEntry.cpp
! src/share/vm/classfile/modules.cpp
! src/share/vm/prims/unsafe.cpp