RFR: Fix (external) heap iteration

[Roman Kennke]

Am 11.10.2017 um 18:12 schrieb Aleksey Shipilev:
> On 10/11/2017 01:18 PM, Roman Kennke wrote:
>> http://cr.openjdk.java.net/~rkennke/heapiter/webrev.00/
> This looks good to me. I propose these corrections:
>   http://cr.openjdk.java.net/~shade/shenandoah/jvmti-review.patch
>
> It runs hotspot_gc_shenandoah fine for me too.
>
> Thanks,
> -Aleksey
>
>
>
Thanks for improving it!

The combined webrev:

http://cr.openjdk.java.net/~rkennke/heapiter/webrev.01/ 
<http://cr.openjdk.java.net/%7Erkennke/heapiter/webrev.01/>

Roman