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From Felix Cheung <>
Subject Re: Test and support only LTS JDK release?
Date Tue, 06 Nov 2018 22:56:33 GMT
Is there a list of LTS release that I can reference?

From: Ryan Blue <>
Sent: Tuesday, November 6, 2018 1:28 PM
Cc: Spark Dev List;
Subject: Re: Test and support only LTS JDK release?

+1 for supporting LTS releases.

On Tue, Nov 6, 2018 at 11:48 AM Robert Stupp <<>>

+1 on supporting LTS releases.

VM distributors (RedHat, Azul - to name two) want to provide patches to LTS versions (i.e.
into How that will play out in reality ...
I don't know. Whether Oracle will contribute to that repo for 8 after it's EOL and 11 after
the 6 month cycle ... we will see. Most Linux distributions promised(?) long-term support
for Java 11 in their LTS releases (e.g. Ubuntu 18.04). I am not sure what that exactly means
... whether they will actively provide patches to OpenJDK or whether they just build from

But considering that, I think it's definitely worth to at least keep an eye on Java 12 and
13 - even if those are just EA. Java 12 for example does already forbid some "dirty tricks"
that are still possible in Java 11.

On 11/6/18 8:32 PM, DB Tsai wrote:
OpenJDK will follow Oracle's release cycle,, a strict
six months model. I'm not familiar with other non-Oracle VMs and Redhat support.

DB Tsai  |  Siri Open Source Technologies [not a contribution]  |   Apple, Inc

On Nov 6, 2018, at 11:26 AM, Reynold Xin <<>>

What does OpenJDK do and other non-Oracle VMs? I know there was a lot of discussions from
Redhat etc to support.

On Tue, Nov 6, 2018 at 11:24 AM DB Tsai <<>>
Given Oracle's new 6-month release model, I feel the only realistic option is to only test
and support JDK such as JDK 11 LTS and future LTS release. I would like to have a discussion
on this in Spark community.


DB Tsai  |  Siri Open Source Technologies [not a contribution]  |   Apple, Inc

Robert Stupp

Ryan Blue
Software Engineer
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