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From Jaikiran Pai <jaiki...@apache.org>
Subject Re: JDK 16 is now in Rampdown Phase Two
Date Fri, 15 Jan 2021 12:12:44 GMT
Hello Rory,

I ran the Ant testsuite on a Linux setup against this JDK 16 build 
16-ea+32-2190. No issues were noticed. The regression that was observed 
in the previous JDK 16 EA and was reported in 
https://bugs.openjdk.java.net/browse/JDK-8258246, is no longer present 
in this JDK 16 build.

As for the JDK 17 build 17-ea+5-266, the above reported regression 
continues to exist in that build (I guess because the JDK16 repo changes 
haven't yet been merged to JDK master repo or perhaps this JDK 17 build 
is older). No other issues observed in this version.

The CI jobs are available for reference here:

JDK 16 - 
https://ci-builds.apache.org/job/Ant/job/Ant%20Master%20(latest%20EA%20JDK)/jdk_axis=jdk16_ea,label_exp=ubuntu/64/

JDK 17 - 
https://ci-builds.apache.org/job/Ant/job/Ant%20Master%20(latest%20EA%20JDK)/jdk_axis=jdk17_ea,label_exp=ubuntu/64/


-Jaikiran

On 15/01/21 2:31 pm, Rory O'Donnell wrote:
> Hi Stefan/Jaikiran,
>
> *Per the JDK 16 schedule , we are in Rampdown Phase Two* *[1] .
> *
>
> *Please advise if you find any issues while testing the latest Early 
> Access builds.*
>
>  * Schedule for JDK 16
>      o *2021/01/14  Rampdown Phase Two*
>      o 2021/02/04  Initial Release Candidate
>      o 2021/02/18  Final Release Candidate
>      o 2021/03/16  General Availability
>  * Release Notes [2]
>
> OpenJDK 16 Early Access build 32**is now available at 
> http://jdk.java.net/16
>
>  * These early-access, open-source builds are provided under the GNU
>    General Public License, version 2, with the Classpath Exception
>    <http://openjdk.java.net/legal/gplv2+ce.html>.
>  * Features [3] - the overall feature set is frozen. No further JEPs
>    will be targeted to this release.
>  * Changes in recent builds that maybe of interest:
>      o Build 32:
>          + JDK-8259028 - ClassCastException when using custom
>            filesystem with wrapper FileChannel impl
>              # Apache Lucene found.
>          + JDK-8253996 - Javac error on jdk16 build 18: invalid flag:
>            -Xdoclint:-missing
>              # Apache Zookeeper found.
>      o Build 31:
>          + JDK-8259027: NullPointerException in makeMappedSegment due
>            to NULL Unmapper when length of segment is 0
>              # Reported by Apache Lucene
>      o Build 30:
>          + JDK-8254023: A module declaration is not allowed to be a
>            target of an annotation that lacks an @Target meta-annotation
>              # Reported by JUnit5
>          + JDK-8256693: getAnnotatedReceiverType parameterizes types
>            too eagerly
>
>  * JDK 16 - topics of interest
>      o Investigating MD5 overheads:
> https://cl4es.github.io/2021/01/04/Investigating-MD5-Overheads.html
>      o Towards OpenJDK 17 - a quick update on startup performance
>        https://cl4es.github.io/2020/12/06/Towards-OpenJDK-17.html
>      o Migrating OpenJDK to Git & GitHub - GitHub Universe 2020 session
>        replay
>        https://inside.java/2020/12/11/skara-github-universe/
>
> Project Panama/foreign EA Build 16-panama+3-385 (2020/12/10) 
> <https://jdk.java.net/panama/> is available now [4]
>
>  * What's new
>      o jextract is now fully compatible with Java 16
>      o New architecture based on Foreign-Memory Access API (JEP 370
>        <https://openjdk.java.net/jeps/370>, JEP 383
>        <https://openjdk.java.net/jeps/383>, JEP 393
>        <https://openjdk.java.net/jeps/393>) and Foreign Linker API (JEP
>        389 <https://openjdk.java.net/jeps/389>)
>
>  * These early-access builds are provided under the GNU General Public
>    License, version 2, with the Classpath Exception
>    <http://openjdk.java.net/legal/gplv2+ce.html>
>  * EA builds are produced for the purpose of gathering feedback. Use
>    for any other purpose is at your own risk.
>  * Please send feedback via e-mail to panama-dev@openjdk.java.net
>    <panama-dev@openjdk.java.net>. To send e-mail to this address you
>    must first subscribe to the mailing list
> <https://mail.openjdk.java.net/mailman/listinfo/panama-dev>.
>
>  * Project Panama - topics of interest
>      o “The Vector API” with John Rose and Paul Sandoz
>        https://inside.java/2020/11/17/podcast-007/
>      o “The Foreign Memory Access API” with Maurizio Cimadamore and
>        Jorn Vernee
>        https://inside.java/2020/12/11/podcast-009/
>      o “The Foreign Linker API” with Maurizio Cimadamore and Jorn Vernee
>        https://inside.java/2020/12/21/podcast-010/
>
> OpenJDK 17 Early Access build 5**is now available at 
> http://jdk.java.net/17
>
>  * These early-access, open-source builds are provided under the GNU
>    General Public License, version 2, with the Classpath Exception
>    <http://openjdk.java.net/legal/gplv2+ce.html>.
>  * Changes in recent builds that maybe of interest:
>      o Build 4:
>          + JDK-8258800: Deprecate -XX:+AlwaysLockClassLoader
>      o Build 3:
>          + JDK-8246005: KeyStoreSpi::engineStore(LoadStoreParameter)
>            spec mismatch to its behavior
>          + JDK-8258765: getAnnotatedReceiverType parameterizes types
>            too eagerly
>  * JDK 17 - topic of interest
>      o Towards OpenJDK 17 - a quick update on startup performance:
>          + https://cl4es.github.io/2020/12/06/Towards-OpenJDK-17.html
>
> Java Cryptographic Roadmap [5] has been updated
>
>  * Removing root certificates with 1024-bit keys in July 2021 CPU.
>  * Disabling of SHA-1 JARS signed after 2019-01-01 has been postponed
>    to July 2021 CPU.
>
> Rgds, Rory
>
> [1] 
> https://mail.openjdk.java.net/pipermail/jdk-dev/2021-January/005001.html
> [2] https://jdk.java.net/16/release-notes
> [3] http://openjdk.java.net/projects/jdk/16/ 
> <http://openjdk.java.net/projects/jdk/16/>
> [4] 
> https://mail.openjdk.java.net/pipermail/panama-dev/2020-December/011605.html 
> <https://mail.openjdk.java.net/pipermail/panama-dev/2020-December/011605.html>

>
> [5] https://java.com/en/jre-jdk-cryptoroadmap.html 
> <https://java.com/en/jre-jdk-cryptoroadmap.html>
>

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