hg: jdk/hs: 8197901: Crash during GC when logging level is debug

[mikhailo.seledtsov at oracle.com]

Changeset: 4aa67aba6c85
Author:    lmesnik
Date:      2018-02-23 13:55 -0800
URL:       http://hg.openjdk.java.net/jdk/hs/rev/4aa67aba6c85

8197901: Crash during GC when logging level is debug
Reviewed-by: dholmes, coleenp
Contributed-by: Leonid Mesnik <leonid.mesnik at oracle.com>

! src/hotspot/share/oops/klass.cpp
! test/hotspot/jtreg/runtime/RedefineTests/RedefineRunningMethods.java
! test/jdk/java/lang/StackWalker/VerifyStackTrace.java