hg: jdk/sandbox: 8211821: PrintStringTableStatistics crashes JVM

[chris.hegarty at oracle.com]

Changeset: 8419d77e3635
Author:    hseigel
Date:      2018-10-11 11:31 -0400
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/8419d77e3635

8211821: PrintStringTableStatistics crashes JVM
Summary: During JVM exit, print the Symbol and String tables before current thread gets deleted.
Reviewed-by: iklam, dholmes

! src/hotspot/share/runtime/java.cpp
! src/hotspot/share/runtime/thread.cpp
+ test/hotspot/jtreg/runtime/PrintStringTableStats/PrintStringTableStatsTest.java