RFR: 8237825: ZGC: Replace -XX:ZPath with -XX:AllocateHeapAt

[Per Liden]

Thanks Erik!

/Per

On 1/24/20 4:01 PM, erik.osterlund at oracle.com wrote:
> Hi Per,
> 
> Looks good!
> 
> /Erik
> 
> On 1/24/20 3:49 PM, Per Liden wrote:
>> ZGC has the option -XX:ZPath to allow a user to explicitly specify 
>> where the backing file system is located. However, after ZPath was 
>> introduced, a new generic option -XX:AllocateHeapAt was introduced. 
>> This option is used the other GCs and have the same meaning/purpose 
>> and it's arguably better named. There's no good reason why ZGC 
>> shouldn't use that too, instead of -XX:ZPath.
>>
>> Bug: https://bugs.openjdk.java.net/browse/JDK-8237825
>> Webrev: http://cr.openjdk.java.net/~pliden/8237825/webrev.0
>>
>> /Per
>