RFR (S) JDK-8025700: RuntimeMXBean.getInputArguments() should include -server/-client/-d32/-d64

[David Holmes]

As I wrote in the bug report I have reservations about this as these are 
launcher options not VM options. Plus with the dropping of 32-bit 
Solaris the -d32/-d64 part will be moot. That leaves the VM "mode" - 
client, server, minimal or whatever might happened to be defined via 
jvm.cfg (-server might actually run client VM).

David

On 3/10/2013 11:40 PM, Aleksey Shipilev wrote:
> Hi,
>
> Please take a look at the potential fix for:
>    https://bugs.openjdk.java.net/browse/JDK-8025700
>
> The webrev is here:
>    http://cr.openjdk.java.net/~shade/8025700/webrev.01/
>
> Rationale: when doing the Java tools which need to replicate the VM
> launch, e.g. fork the JVM with the same set of command line options, we
> need the exact command line. Otherwise we miss the significant part of
> configuration, which confuses people. So far we miss "-server",
> "-client", "-d32", and "-d64" options from there. I have seen troubles
> with jmh and jcstress stemming from this very issue.
>
> Testing:
>    - new jtreg test, works fine on Linux x86_64; (I can run other
> platforms as long as the fix approach is sound)
>    - jdk/test/tools/launcher jtreg tests on Linux x86_64
>
> Thanks,
> -Aleksey
>