RFR (S) 8217994: os::print_hex_dump should be more resilient against unreadable memory

[zgu at redhat.com]

On Tue, 2019-01-29 at 18:06 +0100, Aleksey Shipilev wrote:
> On 1/29/19 6:01 PM, zgu at redhat.com wrote:
> > Looks good to me.
> 
> Thanks.
> 
> > But you may need "default" switch to make some compilers happy.
> 
> It follows the form of the existing switch. I also think we never
> actually reach any default label
> in those switches, because there is an entry switch that returns on
> default.
Got it.

Thanks,

-Zhengyu

> 
> -Aleksey
>