hg: jdk9/hs-rt/hotspot: 6584008: jvmtiStringPrimitiveCallback should not be invoked when string value is null

[staffan.larsen at oracle.com]

Changeset: 4a14bb075882
Author:    aph
Date:      2015-01-16 09:15 +0100
URL:       http://hg.openjdk.java.net/jdk9/hs-rt/hotspot/rev/4a14bb075882

6584008: jvmtiStringPrimitiveCallback should not be invoked when string value is null
Reviewed-by: sla, sspitsyn

! src/share/vm/prims/jvmtiTagMap.cpp