I have no position on this, but I would like to issue a word of caution to everyone excited to use the new JDK8 features in development to please discuss their use widely beforehand, and to consider them carefully. Many of them are not generally useful to us (e.g. LongAdder), and may have unexpected behaviours (e.g. hidden parallelization in streams).
On Thu, May 7, 2015 at 5:16 PM, Yuki Morishita <mor.y...@gmail.com> wrote: > +1 > > On Thu, May 7, 2015 at 11:13 AM, Jeremiah D Jordan > <jerem...@datastax.com> wrote: > > With Java 7 being EOL for free versions I am +1 on this. If you want to > stick with 7, you can always keep running 2.1. > > > >> On May 7, 2015, at 11:09 AM, Jonathan Ellis <jbel...@gmail.com> wrote: > >> > >> We discussed requiring Java 8 previously and decided to remain Java > >> 7-compatible, but at the time we were planning to release 3.0 before > Java 7 > >> EOL. Now that 8099 and increased emphasis on QA have delayed us past > Java > >> 7 EOL, I think it's worth reopening this discussion. > >> > >> If we require 8, then we can use lambdas, LongAdder, StampedLock, > Streaming > >> collections, default methods, etc. Not just in 3.0 but over 3.x for the > >> next year. > >> > >> If we don't, then people can choose whether to deploy on 7 or 8 -- but > the > >> vast majority will deploy on 8 simply because 7 is no longer supported > >> without a premium contract with Oracle. 8 also has a more advanced G1GC > >> implementation (see CASSANDRA-7486). > >> > >> I think that gaining access to the new features in 8 as we develop 3.x > is > >> worth losing the ability to run on a platform that will have been EOL > for a > >> couple months by the time we release. > >> > >> -- > >> Jonathan Ellis > >> Project Chair, Apache Cassandra > >> co-founder, http://www.datastax.com > >> @spyced > > > > > > -- > Yuki Morishita > t:yukim (http://twitter.com/yukim) >
