RFR(S): 8219650: [Testbug] Fix potential crashes in new test hotspot gtest "test_print_hex_dump"

[Aleksey Shipilev]

On 2/25/19 3:44 PM, Aleksey Shipilev wrote:
> On 2/25/19 3:26 PM, Langer, Christoph wrote:
>> please review the following small test fix.
>>
>> Bug: https://bugs.openjdk.java.net/browse/JDK-8219650
>> Webrev: http://cr.openjdk.java.net/~clanger/webrevs/8219650.0/
> 
> Looks good to me.
> 
> If you will, I'd prefer to allocate char* to guarantee the size of array.

I wonder, separately, if print_hex_dump should be resilient against unaligned addresses too, e.g.
aligning the start by machine word width? It could be called from VM code with whatever start/end, I
think.

-Aleksey