RFR: JDK-8243991 Use standard -Xss argument in java command line

[David Holmes]

Also note that -Xss affects the main thread created by the Java 
launcher, whereas -XX:ThreadStackSize does not. So potentially this 
could introduce unexpected side-effects.

David

On 28/04/2020 8:17 pm, David Holmes wrote:
> Hi Magnus,
> 
> On 28/04/2020 7:42 pm, Magnus Ihse Bursie wrote:
>> We should use the official -Xss argument[1] in command lines, instead 
>> of the non-standard -XX:ThreadStackSize.
>>
>> Bug: https://bugs.openjdk.java.net/browse/JDK-8243991
>> WebRev: 
>> http://cr.openjdk.java.net/~ihse/JDK-8243991-fix-Xss-in-java-args/webrev.01 
>>
> 
> This isn't right. ThreadStackSize takes a value in KB, whereas -Xss is a 
> value in bytes. You won't be able to even start the VM with the values 
> you have specified.
> 
> Cheers,
> David
> 
>> /Magnus
>>
>> [1] 
>> https://docs.oracle.com/en/java/javase/14/docs/specs/man/java.html#extra-options-for-java 
>>