+1 from me to using Java 8 or even going all the way to 9 for the 3.5 release branch.
On Mar 7, 2018 8:17 AM, "Shawn Heisey" <apa...@elyograg.org> wrote: > On 3/7/2018 4:04 AM, Andor Molnar wrote: > >> I've quickly checked some of the major components that are heavy Zk >> clients: >> >> Hadoop/HDFS = 1.8 required >> HBase = 1.8 required >> Kafka = 1.7 required (has some 1.8 and 1.9 bindings) >> Hive = 1.8 required >> Curator = 1.7 required (has 1.8-only async module to take advantage of >> Java >> lambdas) >> Solr = 1.8 >> >> As always, your feedback is much appreciated. >> > > I come from the Solr world. > > Lucene/Solr started requiring Java 7 with the release of 4.8.0, announced > on 2014-04-28. > > Lucene/Solr started requiring Java 8 with the release of 6.0.0, announced > on 2016-04-08. > > The general reaction each time one of these major changes was discussed > seemed to be "oh, finally! it's about time!" I get the strong sense that > Lucene committers really want to use the new language features, and feel > limited when they can't. Historically, there have been a few changes > committed that failed to compile when the officially supported minimum JDK > version was used. The authors probably should have noticed the problem, > but sometimes don't because they're using updated toolchains. > > How do the committers on this project generally feel about needing to > avoid using Java 8 features? If they don't feel limited, there's probably > no reason to update the requirement. If however they feel that they could > write better code with a refresh, then given general industry trends, it > probably is time to consider updating the requirement. Maybe you will want > to accelerate plans for a 4.0 release, and update the requirement there. > > Another piece of information to think about: Oracle isn't providing > public support/bugfixes for Java 7 any more. To get support, Oracle must > be paid. Java 8 is going to reach that same milestone in January 2019, so > within the next year or so, we are going to begin seeing a lot of projects > updating to a minimum of Java 9. > > Thanks, > Shawn > >
