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

[Rory O'Donnell <ro...@oracle.com>]

Thanks Rick!

On 21/04/2021 00:17, Rick Hillegas wrote:
> Thanks, Rory. Derby builds and tests cleanly with this early access 
> distro. See 
> https://urldefense.com/v3/__https://issues.apache.org/jira/browse/DERBY-7110?focusedCommentId=17326152&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel*comment-17326152__;Iw!!GqivPVa7Brio!PBCI-d8ql9JAfAmBM91KWYG7zV-zISq9nTeYYUS5hRpb9hg1o4IX-ZkwRIeUCqt8Yqc$ 
>
> Cheers,
> -Rick
>
> On 4/20/21 3:03 AM, Rory O'Donnell wrote:
>>
>> *Hi Rick, *
>>
>> *OpenJDK 17 Early Access build 18****is now available at 
>> **https://urldefense.com/v3/__https://jdk.java.net/17__;!!GqivPVa7Brio!PBCI-d8ql9JAfAmBM91KWYG7zV-zISq9nTeYYUS5hRpb9hg1o4IX-ZkwRIeU2DGwG48$ 
>> <https://urldefense.com/v3/__https://jdk.java.net/17__;!!GqivPVa7Brio!PBCI-d8ql9JAfAmBM91KWYG7zV-zISq9nTeYYUS5hRpb9hg1o4IX-ZkwRIeU2DGwG48$ 
>> >*
>>
>>  * 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 
>> https://urldefense.com/v3/__http://jdk.java.net/17/release-notes__;!!GqivPVa7Brio!PBCI-d8ql9JAfAmBM91KWYG7zV-zISq9nTeYYUS5hRpb9hg1o4IX-ZkwRIeUWhUq3Os$ 
>> <https://urldefense.com/v3/__https://jdk.java.net/17/release-notes__;!!GqivPVa7Brio!PBCI-d8ql9JAfAmBM91KWYG7zV-zISq9nTeYYUS5hRpb9hg1o4IX-ZkwRIeUckLiW5c$ 
>> >
>>
>>
>> **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