The error you ran into was a known issue in Oracle JDK as well as in OpenJDK but both are fixed: - Oracle JDK - https://bugs.java.com/bugdatabase/view_bug.do?bug_id=8213952 - OpenJDK - https://bugs.openjdk.java.net/browse/JDK-8213952
Knox's PR builder (Travis CI) uses OpenJDK (sample log: https://api.travis-ci.org/v3/job/558804721/log.txt): Java version: 1.8.0_212, vendor: Oracle Corporation, runtime: /usr/local/openjdk-8/jre I experienced the same issue before I upgraded from u151 to u212 locally. I believe this should not hold back the release. We should only document the minimum Java 8 version (update 212) in the release notes. Cheers, Sandor On Sat, Jul 13, 2019 at 4:34 PM Jeffrey Rodriguez <jeffrey...@gmail.com> wrote: > Here another attempt to build Knox. > > This time in a docker container running alpine version 3.8.2. > > Maven 3.6.1 > Ant 1.9.14 > Oracle java version "1.8.0_202" > > Attached build output. > > Regards, > Jeffrey E Rodriguez >