Re: Pre-processing during build

On 17 June 2015 at 03:07, Mark Rotteveel <mark(at)lawinegevaar(dot)nl> wrote:

> On Wed, 17 Jun 2015 00:02:40 +0300, Vladimir Sitnikov
> <sitnikov(dot)vladimir(at)gmail(dot)com> wrote:
> > 2015-06-16 22:30 GMT+03:00 Markus KARG <markus(at)headcrashing(dot)eu>:
> >> The answer is pretty simple: Try it out. :-)
> >>
> >> Just compile a JRE 8 class down to byte code level 6 and load it on
> Java
> >> level 7. That's what I proposed. Nothing else. It really bet will work
> >> unless you try to INSTANTIATE JRE-only classes, but it should LOAD. And
> >> nothing more we need.
> >
> > Markus, can you please be more explicit in your suggestion?
> >
> > I did try a simple "Hello, world" and it does not run in stock JDKs of
> > MacOS: https://gist.github.com/vlsi/aeeb4a61d9c2b67ad213
> > Even if you manage to make that fly, that would be built on sand.
>
> Good example: it demonstrates at least that using reflection (eg
> getDeclaredMethods; or in this case privateGetDeclaredMethods) will lead to
> a NoClassDefFoundError.
>
>
I'm not sure this is a great example as Optional itself is a java 8
construct.

Either way Spring is able to do this, as are others?

Dave Cramer

dave.cramer(at)credativ(dot)ca
http://www.credativ.ca