Thank you all!

Let me add more explanation on the current status.

    - If you want to run on JDK8, you need to build on JDK8
    - If you want to run on JDK11, you need to build on JDK11.

The other combinations will not work.

Currently, we have two Jenkins jobs. (1) is the one I pointed, and (2) is the one for the remaining community work.

    1) Build and test on JDK11 (spark-master-test-maven-hadoop-3.2-jdk-11)
    2) Build on JDK8 and test on JDK11 (spark-master-test-maven-hadoop-2.7-jdk-11-ubuntu-testing)

To keep JDK11 compatibility, the following is merged today.

    [SPARK-28701][TEST-HADOOP3.2][TEST-JAVA11][K8S] adding java11 support for pull request builds

But, we still have many stuffs to do for Jenkins/Release and we need your support about JDK11. :)

Bests,
Dongjoon.


On Sun, Aug 25, 2019 at 10:30 PM Takeshi Yamamuro <linguin.m.s@gmail.com> wrote:
Cool, congrats!

Bests,
Takeshi

On Mon, Aug 26, 2019 at 1:01 PM Hichame El Khalfi <hichame@elkhalfi.com> wrote:
That's Awesome !!!

Thanks to everyone that made this possible :cheers:

Hichame

Great work!

On Sun, Aug 25, 2019 at 6:03 AM Xiao Li <lixiao@databricks.com> wrote:
Thank you for your contributions! This is a great feature for Spark 3.0! We finally achieve it! 

Xiao

On Sat, Aug 24, 2019 at 12:18 PM Felix Cheung <felixcheung_m@hotmail.com> wrote:
That’s great!


From: ☼ R Nair <ravishankar.nair@gmail.com>
Sent: Saturday, August 24, 2019 10:57:31 AM
To: Dongjoon Hyun <dongjoon.hyun@gmail.com>
Cc: dev@spark.apache.org <dev@spark.apache.org>; user @spark/'user @spark'/spark users/user@spark <user@spark.apache.org>
Subject: Re: JDK11 Support in Apache Spark
 
Finally!!! Congrats

On Sat, Aug 24, 2019, 11:11 AM Dongjoon Hyun <dongjoon.hyun@gmail.com> wrote:
Hi, All.

Thanks to your many many contributions,
Apache Spark master branch starts to pass on JDK11 as of today.
(with `hadoop-3.2` profile: Apache Hadoop 3.2 and Hive 2.3.6)

    (JDK11 is used for building and testing.)

We already verified all UTs (including PySpark/SparkR) before.

Please feel free to use JDK11 in order to build/test/run `master` branch and
share your experience including any issues. It will help Apache Spark 3.0.0 release.

For the follow-ups, please follow https://issues.apache.org/jira/browse/SPARK-24417 .
The next step is `how to support JDK8/JDK11 together in a single artifact`.

Bests,
Dongjoon.


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