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From Deepak Damodaran <deepak.n.damoda...@oracle.com>
Subject Re: [External] : Re: JDK 17 EA build 18 is available
Date Thu, 22 Apr 2021 04:52:39 GMT
Thank you Jaikiran.

Regards
Deepak

´╗┐On 22/04/21, 10:10 AM, "Jaikiran Pai" <jaikiran@apache.org> wrote:

    Hello Rory,

    No issues were observed against our Ant testsuite on a Linux setup with 
    JDK 17 build 17-ea+18-1490.

    https://urldefense.com/v3/__https://ci-builds.apache.org/job/Ant/job/Ant*20Master*20(latest*20EA*20JDK)/71/jdk_axis=jdk17_ea,label_exp=ubuntu/__;JSUlJQ!!GqivPVa7Brio!OxE8sKDexsAyx-YXPEu5ONvqpI7zvtojJVYdt-OsNU9bVa9p9olm2fS4Xpy20ocM-2n8MQ$


    -Jaikiran


    On 20/04/21 3:21 pm, Rory O'Donnell wrote:
    >
    > *Hi Stefan/Jaikiran, *
    >
    > *OpenJDK 17 Early Access build 18****is now available at 
    > **https://urldefense.com/v3/__https://jdk.java.net/17__;!!GqivPVa7Brio!OxE8sKDexsAyx-YXPEu5ONvqpI7zvtojJVYdt-OsNU9bVa9p9olm2fS4Xpy20occDSo9Jw$
 <https://urldefense.com/v3/__https://jdk.java.net/17__;!!GqivPVa7Brio!OxE8sKDexsAyx-YXPEu5ONvqpI7zvtojJVYdt-OsNU9bVa9p9olm2fS4Xpy20occDSo9Jw$
>*
    >
    >  * 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!OxE8sKDexsAyx-YXPEu5ONvqpI7zvtojJVYdt-OsNU9bVa9p9olm2fS4Xpy20odIkcRMWA$

    >    <https://urldefense.com/v3/__https://jdk.java.net/17/release-notes__;!!GqivPVa7Brio!OxE8sKDexsAyx-YXPEu5ONvqpI7zvtojJVYdt-OsNU9bVa9p9olm2fS4Xpy20ocBJQ6v4g$
>
    >
    >
    > **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
    >

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