i dont completely understand the meaning behind supporting 2 java versions. given java's pretty good about backwards compatibility if you build against the oldest JDK you support (say 8) it should run on anything newer (say 9). what am i missing?
On Mon, Nov 28, 2016 at 4:06 AM, Ismael Juma <ism...@juma.me.uk> wrote: > I think there are 3 main points that can be taken from that discussion with > regards to the timing: > > 1. We should do the switch no earlier than Kafka's next major version bump > (i.e. 0.11.0.0 at this point) > 2. Some would prefer to support two Java versions, so we'd have to wait > until Kafka's next major version bump _after_ Java 9 is released. Java 9 is > currently scheduled to be released in July 2017. I like the guideline of > supporting two Java versions at a time, but multiple delays to Java 8 and 9 > combined with huge improvements in Java 8 could provide the basis for an > exception. > 3. Some would prefer the clients jar to support Java 7 for longer as there > are cases where it is hard to upgrade all clients to use Java 8 (maybe they > run in an older App Server that only supports Java 7, for example). > > It seems like 1 is a hard requirement while 2 and 3 are less so. Given > that, I was planning to restart the conversation when we have a plan to > bump Kafka's major version (a message format change would quality > typically). > > Ismael > > On Thu, Nov 10, 2016 at 7:03 PM, Joel Koshy <jjkosh...@gmail.com> wrote: > > > http://markmail.org/message/gnrn5ccql7a2pmc5 > > We can bump that up to revisit the discussion. That thread didn't have > any > > closure, but has a lot of background information. > > > > On Thu, Nov 10, 2016 at 10:37 AM, Sean McCauliff < > sean.mccaul...@gmail.com > > > > > wrote: > > > > > Wait for JDK 9 which is supposed to be 4-5 months from now? > > > > > > Sean > > > > > > On Thu, Nov 10, 2016 at 10:23 AM, radai <radai.rosenbl...@gmail.com> > > > wrote: > > > > with java 7 being EOL'ed for more than a year and a half now (apr > 2015, > > > see > > > > http://www.oracle.com/technetwork/java/eol-135779.html) i was > > wondering > > > if > > > > there's an official plan/timetable for transitioning the kafka > codebase > > > > over to java 8? > > > > > >
