RFR(XS) 8076311: Java 9 process negative MaxTenuringThreshold in different way than Java 8

[Kim Barrett]

On Apr 3, 2015, at 5:49 AM, Dmitry Dmitriev <dmitry.dmitriev at oracle.com> wrote:
> 
> Hello,
> 
> Please review this small fix for JDK-8076311. Also, I need a sponsor for this fix, who can push it, because I'm not have a OpenJDK name.
> 
> Fix for JDK-6521376 add explicit processing of MaxTenuringThreshold XX option. When bad value for MaxTenuringThreshold is passed(e.g. negative value for unsigned option "-XX:MaxTenuringThreshold=-1"), then function print warning and continue execution with default value(0). This behavior differs from Java 8. Java 8 process this situation in common way for unsigned options, i.e. print waring and reports a error. So, I fix Java 9 MaxTenuringThreshold option processing.
> 
> Also, I add new test case to the test/gc/arguments/TestInitialTenuringThreshold.java to test this situation.
> 
> Open webrev: http://cr.openjdk.java.net/~ctornqvi/webrev/8076311/webrev.00/ <http://cr.openjdk.java.net/%7Ectornqvi/webrev/8076311/webrev.00/>
> 
> JBS bug: https://bugs.openjdk.java.net/browse/JDK-8076311
> 
> Tested: JPRT

Looks good.