hg: jdk/sandbox: 8230116: Test workaround to Klass::_class_loader_data sometimes NULL problem

[chris.hegarty at oracle.com]

Changeset: 2d2c2428bf52
Author:    coleenp
Date:      2019-08-23 23:27 +0000
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/2d2c2428bf52

8230116: Test workaround to Klass::_class_loader_data sometimes NULL problem
Summary: This is a low frequency problem that we are seeing internally, this patch is mostly to rule out one theory.
Reviewed-by: dcubed

! src/hotspot/share/oops/klass.cpp