RFR: JDK-8155730: HeapInfoDCmd should get Heap_lock

[Yasumasa Suenaga]

Hi all,

This review request is related to [1].

HeapInfoDCmd calls CollectedHeap::print_on().
However, its call does not get Heap_lock.

Heap_lock should be gotten from all heap operations.

I uploaded webrev for this issue.
Could you review it?

   http://cr.openjdk.java.net/~ysuenaga/JDK-8155730/webrev.00/

I cannot access JPRT.
So I need a sponsor.


Thanks,

Yasumasa


[1] http://mail.openjdk.java.net/pipermail/hotspot-runtime-dev/2016-April/019257.html