Review request: JDK-8159596 Add java --dry-run

[Mandy Chung]

-XshowSettings would probably be a good place to include the VM arguments.
$ java -XshowSettings:vm -—dry-run

I file a JBS issue:
  https://bugs.openjdk.java.net/browse/JDK-8160389

Mandy


> On Jun 27, 2016, at 9:20 AM, Paul Benedict <pbenedict at apache.org> wrote:
> 
> Mandy, if I may recommend another suggestion, another "sanity" check could be dumping the command line arguments. I know quite a few bash programmers who would really love to see they passed their arguments correctly without executing their program. :-)
> 
> Cheers,
> Paul
> 
> On Mon, Jun 27, 2016 at 10:48 AM, Raymond Gallardo <raymond.gallardo at oracle.com> wrote:
> Hi Mandy,
> 
> Does this enhancement need to be doc'd? If so, could you add a subtask (component = docs)?
> 
> Thanks,
> --Raymond
> 
> On 24/06/2016 9:49 AM, Mandy Chung wrote:
> Webrev:
>    http://cr.openjdk.java.net/~mchung/jdk9/webrevs/8159596/webrev.00/
> 
> `java --dry-run` will create the VM, load the main, locate the static void main method, and exit (with 0) instead of executing the method.  As all module options are processed and the boot layer is created, this would be useful to sanity check the options and detect possible issues.
> 
> Mandy
> 
> 
>