hg: jdk/sandbox: 8206471: Race with ConcurrentHashTable deleting items on insert with cleanup thread

[chris.hegarty at oracle.com]

Changeset: e0028bb6dd3d
Author:    coleenp
Date:      2018-07-10 11:13 -0400
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/e0028bb6dd3d

8206471: Race with ConcurrentHashTable deleting items on insert with cleanup thread
Summary: Only fetch Node::next once and use that result.
Reviewed-by: hseigel, dholmes

! src/hotspot/share/utilities/concurrentHashTable.inline.hpp