Running micro benchmark results in 'Error: Unable to access jarfile'

[Claes Redestad]

<moved to build-dev@ from jdk-dev at ..., original thread here:
http://mail.openjdk.java.net/pipermail/jdk-dev/2019-February/002624.html>

Hi,

On 2019-02-18 22:34, Jorn Vernee wrote:
> Hi Claes,
> 
>> 1. Does running make test rather than make test-only work?
> 
> No. Same error there. Sorry, I tried that first and then re-ran with 
> `test-only`. I also tried with a clean build FWIW.
> 
>> 2. Can you run the benchmarks.jar directly?
> 
> Yes, this is working, thanks. This way I can also pass extra flags to 
> JMH, which is nice :)
> 
> ---
> 
> FWIW, I also had some problems when running configure.
> 
>    1.) I did not get a warning when I was missing --with-jmh for 
> configure, although it looks like there is supposed to be one (without 
> --with-jmh I got the same access error, but the benchmarks.jar did not 
> exist).

--with-jmh is an optional configure flag, not sure what we could do to
warn here. Perhaps there's some way to ensure certain make targets
depend on the configure having been run with the necessary prerequistes.
Sounds like a fine enhancement.

>    2.) My path to the --with-jmh folder had spaces in it, which was 
> causing an error in make/autoconf/lib-tests.m4 on line 76 [1].

Sounds like a bug.

> 
> But those both had obvious workarounds.
> 
> ---
> 
> I was hoping to use the framework for Panama, so I'd likely have some 
> native library as dependency of the benchmark. Is there currently any 
> support for building (native) dependencies automatically?

There should be support in the build system _somewhere_, but adding a
native library to a microbenchmark might still be a non-trivial
enhancement to the current implementation. It'd be a great addition,
though. I might have time to help out sometime soon, but I've got my
hands full right now. Perhaps someone else on this list could advice?

Thanks!

/Claes

> 
> Thanks,
> Jorn
> 
> [1] : 
> http://hg.openjdk.java.net/jdk/jdk/file/bec6c8739833/make/autoconf/lib-tests.m4#l76 
>