Passing jvmArgs with spaces?

[Trask Stalnaker]

Great, this worked for me.  I tried both options on Windows and Linux.

Thanks,
Trask


On Tue, Mar 31, 2015 at 4:07 AM Aleksey Shipilev <
aleksey.shipilev at oracle.com> wrote:

> Hi Trask,
>
> On 03/24/2015 06:42 AM, Trask Stalnaker wrote:
> > While on Linux:
> >
> > # JMH 1.7 (released 3 days ago)
> > # VM invoker: /usr/lib/jvm/java-8-oracle/jre/bin/java
> > # VM options: -Dx=12 "-Dy=one two"
> >
> > and the benchmark fails with
> >
> > Error: Could not find or load main class "-Dy=one
>
> The real cause for this issue is that JMH splits the single jvmArg
> argument into multiple arguments with naive split("[ ]+"), that also
> splits by space between "one" and "two".
>
> There are two ways to address this:
>   a) Accept multiple -jvmArgs, each for a single argument. This seems to
> be a proper fix, that is also coherent with .jvmArgs() in API. The
> drawback for users: requires a tedious listing when multiple options are
> required.
>   b) Make -jvmArgs splitter to be resilient for quotes. The ambigous
> part about this: how to handle nested quotes. Trivially, we may just
> ignore the issue and treat the quotes as non-nested.
>
> With:
>  https://bugs.openjdk.java.net/browse/CODETOOLS-7901362
>
> ...we have implemented both. Therefore, two proper ways emerged:
>
>  $ java -jar benchmarks.jar -jvmArgs "-Dx=12 -Dy=\"one two\""
>  $ java -jar benchmarks.jar -jvmArgs "-Dx=12" -jvmArgs "-Dy=one two"
>
> Both work fine on Linux and Windows. Please confirm.
>
> Thanks,
> -Aleksey.
>
> P.S. I believe it worked "fine" on Windows, because Java launcher there
> intervened and "fixed" some quirks.
>
>
>