hg: jdk/hs: 8197780: Null pointer dereference in Klass::is_instance_klass of klass.hpp:532

[coleen.phillimore at oracle.com]

Changeset: 91ada5977172
Author:    coleenp
Date:      2018-02-23 07:47 -0500
URL:       http://hg.openjdk.java.net/jdk/hs/rev/91ada5977172

8197780: Null pointer dereference in Klass::is_instance_klass of klass.hpp:532
Summary: Make generate_class_cast_message able to deal with NULL klass from the constant pool.
Reviewed-by: hseigel, lfoltan

! src/hotspot/share/oops/constantPool.cpp
! src/hotspot/share/oops/constantPool.hpp
! src/hotspot/share/oops/klass.cpp
! src/hotspot/share/oops/klass.hpp
! src/hotspot/share/runtime/sharedRuntime.cpp
! src/hotspot/share/runtime/sharedRuntime.hpp