hg: jdk/submit: 8251918: [Graal] Crash in DumpTimeSharedClassInfo::add_verification_constraint

[calvin.cheung at oracle.com]

Changeset: 80137936f533
Author:    ccheung
Date:      2020-08-22 00:09 +0000
URL:       https://hg.openjdk.java.net/jdk/submit/rev/80137936f533

8251918: [Graal] Crash in DumpTimeSharedClassInfo::add_verification_constraint
Summary: Add NULL check on the return value of SystemDictionaryShared::find_or_allocate_info_for().
Reviewed-by: iklam, minqi

! src/hotspot/share/classfile/systemDictionaryShared.cpp