Bug#909905: gradle FTBFS when building with openjdk-11 (needs update to 4.7.0 or upstream patch)

[Tiago Daitx]

I have updated the patch to include 3 additional commits from
upstream, this fixes the build with openjdk-11 and stops gradle from
FTBFS.

The last applied patch [1], which actually gets rid of the
"NoSuchMethodError: sun.misc.Unsafe.defineClass" error, required me to
remove the kotlin classes and then put the new classes under
subprojets/base-services/ instead of subprojects/base-services-java9/
in order to get them to compile - the logic of handling the
subprojects has been moved to kotlin and I didn't check if there was a
way to get it working with separated directories under gradle's 4.4
build structure.

For now I kept the openjdk-11 version check patch as it was
originally, having the full JEP-223 might actually be a good thing - I
will let the decision to someone who understands gradle better than I
do.

Of course, always bootstrap with openjdk-10 first, after that the
generated binaries are good enough to get it to build with openjdk-11.

[1] debian/patches/use-lookup-instead-of-reflection-on-java-9-3db6e25698705317.patch

On Mon, Oct 1, 2018 at 8:39 PM Emmanuel Bourg <ebourg at apache.org> wrote:
>
> Le 01/10/2018 à 19:37, shirish शिरीष a écrit :
>
> > So are we going to have gradle 4.8 in either experimental or unstable soonish.
>
> Unfortunately no. Starting with version 4.5 Gradle requires Kotlin, and
> we are nowhere near having Kotlin in Debian. It's more likely we'll
> instead patch Gradle 4.4 and fix the Java 11 incompatibilities.
>
>
> > I'm sure you may have read the freeze time-table which was shared few days ago.
> >
> > It would be nice to have all the components in debian tested etc. well
> > before freeze.
>
> Sure but this won't happen magically, we need more contributors.
>
> Emmanuel Bourg
>


-- 
Tiago Stürmer Daitx
Software Engineer
tiago.daitx at canonical.com

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