hg: jdk/jdk: 8196969: JTreg Failure: serviceability/sa/ClhsdbJstack.java causes NPE

[sgehwolf at redhat.com]

Changeset: 516db52daad6
Author:    sgehwolf
Date:      2019-09-23 20:26 +0200
URL:       https://hg.openjdk.java.net/jdk/jdk/rev/516db52daad6

8196969: JTreg Failure: serviceability/sa/ClhsdbJstack.java causes NPE
Summary: Account for serialized null scopes in NMethod
Reviewed-by: aph, never

! src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/code/NMethod.java
+ test/hotspot/jtreg/serviceability/sa/ClhsdbJstackXcompStress.java
+ test/hotspot/jtreg/serviceability/sa/LingeredAppWithRecComputation.java