IIRC some of the ongoing major dependency upgrades (log4j 1 to 2, jersey 1 to 2 and junit 4 to 5) are blockers for java 11 compile + test stability.
On Tue, Mar 28, 2023 at 4:55 AM Steve Loughran <ste...@cloudera.com.invalid> wrote: > Now that hadoop 3.3.5 is out, i want to propose something new > > we switch branch-3.3 and trunk to being java11 only > > > 1. java 11 has been out for years > 2. oracle java 8 is no longer available under "premier support"; you > can't really get upgrades > https://www.oracle.com/java/technologies/java-se-support-roadmap.html > 3. openJDK 8 releases != oracle ones, and things you compile with them > don't always link to oracle java 8 (some classes in java.nio have added > more overrides) > 4. more and more libraries we want to upgrade to/bundle are java 11 only > 5. moving to java 11 would cut our yetus build workload in half, and > line up for adding java 17 builds instead. > > > I know there are some outstanding issues still in > https://issues.apache.org/jira/browse/HADOOP-16795 -but are they blockers? > Could we just move to java11 and enhance at our leisure, once java8 is no > longer a concern. >
