Should be fixed by https://github.com/apache/groovy/commit/bdaef2a1539d3b3d0a9a5fa549ddd7421673797f
Thanks for reporting. Am 16.01.2016 um 11:58 schrieb Russel Winder:
Is it to be expected that the asciidoctorAssets task fails using JDK9 when the build itself has succeeded fine?