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Posted to dev@wicket.apache.org by Rory O'Donnell <ro...@oracle.com> on 2021/04/20 10:05:00 UTC

JDK 17 Early Access build 18 is available

*Hi Martin, *

*OpenJDK 17 Early Access build 18****is now available at 
**https://jdk.java.net/17 <https://jdk.java.net/17>*

  * These early-access , open-source builds are provided under the
      o GNU General Public License, version 2, with the Classpath
        Exception <https://openjdk.java.net/legal/gplv2+ce.html>
  * Release Notes are available at http://jdk.java.net/17/release-notes
    <https://jdk.java.net/17/release-notes>


**G1 pauses may be extremely long with EA build JDK-17+18*

*During performance testing we noticed that due to a recent change 
(JDK-8262068) GC pauses after a G1 full GC may be extremely slow. The 
problem has been fixed with JDK-8264987 and that has already been 
integrated. This change will be available with the following EA build  
JDK-17+19.  For more technical info please see [1]


*JEP 382 [2]**  - Starting with build 19, **JDK 17 for macOS is 
*temporarily* switched from using OpenGL**to using Apple's Metal 
API**for Java 2D rendering.*

Heads up to anyone who is testing JDK 17 for running apps on macOS. 
Starting with build 19, JDK 17 for macOS is *temporarily* switched from 
using OpenGL to using Apple's Metal API for Java 2D rendering.

If you are running any kind of 2D / Swing/ AWT UI application on macOS, 
and see any rendering related problems
starting with JDK 17 b19, please do report them to us along with a test 
case and screen shots.

You may also set "-Dsun.java2d.opengl=true" to re-enable OpenGL - which  
implicitly disables Metal - to confirm that it is a Metal related 
rendering glltch.


Rgds,Rory

[1] 
https://mail.openjdk.java.net/pipermail/hotspot-gc-dev/2021-April/034745.html
[2] https://openjdk.java.net/jeps/382

-- 
Rgds, Rory O'Donnell
Quality Engineering Manager
Oracle EMEA, Dublin, Ireland


Re: [External] : Re: JDK 17 Early Access build 18 is available

Posted by Rory O'Donnell <ro...@oracle.com>.
Thanks Martin!

On 20/04/2021 13:24, Martin Grigorov wrote:
> Hi Rory,
>
> Apache Wicket's build and test pass successfully with 
> JDK 17-ea+18-1490 on Linux x86_64 and aarch64!
>
> Regards,
> Martin
>
> On Tue, Apr 20, 2021 at 1:05 PM Rory O'Donnell 
> <rory.odonnell@oracle.com <ma...@oracle.com>> wrote:
>
>
>     *Hi Martin, *
>
>     *OpenJDK 17 Early Access build 18****is now available at
>     **https://jdk.java.net/17
>     <https://urldefense.com/v3/__https://jdk.java.net/17__;!!GqivPVa7Brio!J-qa-K0A0lOF7en46DXv1mviT3R2FlfIMxjhizO01gi4lDED0D0L5n8eS_vwe99M7bA$>
>     <https://jdk.java.net/17
>     <https://urldefense.com/v3/__https://jdk.java.net/17__;!!GqivPVa7Brio!J-qa-K0A0lOF7en46DXv1mviT3R2FlfIMxjhizO01gi4lDED0D0L5n8eS_vwe99M7bA$>>*
>
>       * These early-access , open-source builds are provided under the
>           o GNU General Public License, version 2, with the Classpath
>             Exception <https://openjdk.java.net/legal/gplv2+ce.html
>     <https://openjdk.java.net/legal/gplv2+ce.html>>
>       * Release Notes are available at
>     http://jdk.java.net/17/release-notes
>     <https://urldefense.com/v3/__http://jdk.java.net/17/release-notes__;!!GqivPVa7Brio!J-qa-K0A0lOF7en46DXv1mviT3R2FlfIMxjhizO01gi4lDED0D0L5n8eS_vw3BE1oqQ$>
>         <https://jdk.java.net/17/release-notes
>     <https://urldefense.com/v3/__https://jdk.java.net/17/release-notes__;!!GqivPVa7Brio!J-qa-K0A0lOF7en46DXv1mviT3R2FlfIMxjhizO01gi4lDED0D0L5n8eS_vwy7DaRFE$>>
>
>
>     **G1 pauses may be extremely long with EA build JDK-17+18*
>
>     *During performance testing we noticed that due to a recent change
>     (JDK-8262068) GC pauses after a G1 full GC may be extremely slow. The
>     problem has been fixed with JDK-8264987 and that has already been
>     integrated. This change will be available with the following EA build
>     JDK-17+19.  For more technical info please see [1]
>
>
>     *JEP 382 [2]**  - Starting with build 19, **JDK 17 for macOS is
>     *temporarily* switched from using OpenGL**to using Apple's Metal
>     API**for Java 2D rendering.*
>
>     Heads up to anyone who is testing JDK 17 for running apps on macOS.
>     Starting with build 19, JDK 17 for macOS is *temporarily* switched
>     from
>     using OpenGL to using Apple's Metal API for Java 2D rendering.
>
>     If you are running any kind of 2D / Swing/ AWT UI application on
>     macOS,
>     and see any rendering related problems
>     starting with JDK 17 b19, please do report them to us along with a
>     test
>     case and screen shots.
>
>     You may also set "-Dsun.java2d.opengl=true" to re-enable OpenGL -
>     which
>     implicitly disables Metal - to confirm that it is a Metal related
>     rendering glltch.
>
>
>     Rgds,Rory
>
>     [1]
>     https://mail.openjdk.java.net/pipermail/hotspot-gc-dev/2021-April/034745.html
>     <https://mail.openjdk.java.net/pipermail/hotspot-gc-dev/2021-April/034745.html>
>     [2] https://openjdk.java.net/jeps/382
>     <https://openjdk.java.net/jeps/382>
>
>     -- 
>     Rgds, Rory O'Donnell
>     Quality Engineering Manager
>     Oracle EMEA, Dublin, Ireland
>

-- 
Rgds, Rory O'Donnell
Quality Engineering Manager
Oracle EMEA, Dublin, Ireland


Re: JDK 17 Early Access build 18 is available

Posted by Martin Grigorov <mg...@apache.org>.
Hi Rory,

Apache Wicket's build and test pass successfully with JDK 17-ea+18-1490 on
Linux x86_64 and aarch64!

Regards,
Martin

On Tue, Apr 20, 2021 at 1:05 PM Rory O'Donnell <ro...@oracle.com>
wrote:

>
> *Hi Martin, *
>
> *OpenJDK 17 Early Access build 18****is now available at
> **https://jdk.java.net/17 <https://jdk.java.net/17>*
>
>   * These early-access , open-source builds are provided under the
>       o GNU General Public License, version 2, with the Classpath
>         Exception <https://openjdk.java.net/legal/gplv2+ce.html>
>   * Release Notes are available at http://jdk.java.net/17/release-notes
>     <https://jdk.java.net/17/release-notes>
>
>
> **G1 pauses may be extremely long with EA build JDK-17+18*
>
> *During performance testing we noticed that due to a recent change
> (JDK-8262068) GC pauses after a G1 full GC may be extremely slow. The
> problem has been fixed with JDK-8264987 and that has already been
> integrated. This change will be available with the following EA build
> JDK-17+19.  For more technical info please see [1]
>
>
> *JEP 382 [2]**  - Starting with build 19, **JDK 17 for macOS is
> *temporarily* switched from using OpenGL**to using Apple's Metal
> API**for Java 2D rendering.*
>
> Heads up to anyone who is testing JDK 17 for running apps on macOS.
> Starting with build 19, JDK 17 for macOS is *temporarily* switched from
> using OpenGL to using Apple's Metal API for Java 2D rendering.
>
> If you are running any kind of 2D / Swing/ AWT UI application on macOS,
> and see any rendering related problems
> starting with JDK 17 b19, please do report them to us along with a test
> case and screen shots.
>
> You may also set "-Dsun.java2d.opengl=true" to re-enable OpenGL - which
> implicitly disables Metal - to confirm that it is a Metal related
> rendering glltch.
>
>
> Rgds,Rory
>
> [1]
>
> https://mail.openjdk.java.net/pipermail/hotspot-gc-dev/2021-April/034745.html
> [2] https://openjdk.java.net/jeps/382
>
> --
> Rgds, Rory O'Donnell
> Quality Engineering Manager
> Oracle EMEA, Dublin, Ireland
>
>