Update build tools

[twogee]

Yay for Java 8!

[twogee]

Looks like JDK must be updated in Jenkins...

[jaikiran]

retest this please

[bodewig]

AFAICT Ivy still wants to be used with Java7

[twogee]

See 889bedb

[bodewig]

See 889bedb

Thank you

[bodewig]

Hmm, to me it looks as if the PR was about upgrading asciidoctor and switching from findbugs to spotbugs and not really about Java 8 at all.

[twogee]

I believe that's all what is left after Jaikiran cherrypicked some changes. Also, newer asciidoctor needs Java 8.
The latest asciidoctor is 2.0.26, and the latest japicmp is 0.25.4

BTW, PR #57 needs Java 8, too, but I'd have to clean it up.

[bodewig]

I believe that's all what is left after Jaikiran cherrypicked some changes. Also, newer asciidoctor needs Java 8. The latest asciidoctor is 2.0.26, and the latest japicmp is 0.25.4

None of the changes is required by switching to Java 8, obviously. :-)

The checkstyle change changes rules (activates a rule about LineLength that used to be inactive, adds a SuppressComments module). I don't think we should do this "under the radar", if at all.

BTW, PR #57 needs Java 8, too, but I'd have to clean it up.

Given the discussion inside #57 I don't plan to spend time reviewing it.

[twogee]

Thanks for reviewing. I will check if newer versions of Checkstyle require rule changes and resubmit, if you still consider the PR relevant.

[bodewig]

I'm fine with updating tools and adjusting, as long as we don't change what the tools do.