Hi Rick,
*
Per the JDK 17 schedule , we are in Rampdown Phase One [1].*
**Please advise if you find any issues while testing the latest Early
Access builds**.**
* Schedule:
o *2021/06/10 Rampdown Phase One*
o 2021/07/15 Rampdown Phase Two
o 2021/08/05 Initial Release Candidate
o 2021/08/19 Final Release Candidate
o 2021/09/14 General Availability
The overall feature set is frozen. No further JEPs will be targeted to
this release.
**
* Important JEPs have been integrated – Attention Required!
* *JEP 411: **Deprecate the Security Manager for
Removal*<https://openjdk.java.net/jeps/411>
o Deprecate, for removal, most Security Manager related classes
and methods.
o Warning message at startup if the Security Manager is enabled on
the command line.
o Warning message at run time if a Java application or library
installs a Security Manager dynamically.
o Deprecation is in concert with the legacy Applet API (JEP 398).
* *JEP 407: **Remove RMI Activation*<https://openjdk.java.net/jeps/407>
o Removal the Remote Method Invocation (RMI) Activation mechanism,
while preserving the rest of RMI.
o It was deprecated for removal by JEP
385<https://openjdk.java.net/jeps/385>in Java SE 15.
* *JEP 403: **Strongly Encapsulate JDK
Internals*<https://openjdk.java.net/jeps/403>
o Strongly encapsulate all internal elements of the JDK, except
for critical internal APIs such as /sun.misc.Unsafe/.
o It will no longer be possible to relax the strong encapsulation
of internal elements via a single command-line option.
* Other features integrated in JDK 17:
o *JEP 306: **Restore Always-Strict Floating-Point
Semantics*<https://openjdk.java.net/jeps/306>
o JEP 356: Enhanced Pseudo-Random Number
Generators<https://openjdk.java.net/jeps/356>
o JEP 382: New macOS Rendering
Pipeline<https://openjdk.java.net/jeps/382>
o JEP 391: macOS/AArch64 Port<https://openjdk.java.net/jeps/391>
o JEP 398: Deprecate the Applet API for
Removal<https://openjdk.java.net/jeps/398>
o *JEP 406: **Pattern Matching for switch
(Preview)*<https://openjdk.java.net/jeps/406>
o JEP 409: Sealed Classes<https://openjdk.java.net/jeps/409>
o JEP 410: Remove the Experimental AOT and JIT
Compiler<https://openjdk.java.net/jeps/410>
o JEP 412: Foreign Function & Memory API
(Incubator)<https://openjdk.java.net/jeps/412>
o *JEP 414: **Vector API (Second
Incubator)*<https://openjdk.java.net/jeps/414>
o *JEP 415: **Context-Specific Deserialization
Filters*<https://openjdk.java.net/jeps/415>
*OpenJDK 17 Early Access build 26 is 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
https://jdk.java.net/17/release-notes<https://jdk.java.net/17/release-notes>
* Changes in recent builds that maybe of interest:
* *Build 26:*
o JDK-8268241: deprecate JVM TI Heap functions 1.0
o JDK-8266846: Add java.time.InstantSource
o JDK-8248268: Support KWP in addition to KW
o JDK-8204686: Dynamic parallel reference processing support for
Parallel GC
o JDK-8259530: Generated docs contain MIT/GPL-licenced works
without reproducing the licence [*Reported by Apache Maven*]
o JDK-8266766: Arrays of types that cannot be an annotation member
do not yield exceptions [*Reported by ByteBuddy*]
o JDK-8266598: Exception values for
AnnotationTypeMismatchException are not always informative
[*Reported by ByteBuddy*]
* *Build 25*
o JDK-8266653: Change update mode for JDK rpm/deb installers as it
breaks "yum update" for JDK11+
o JDK-8263202: Update Hebrew/Indonesian/Yiddish ISO 639 language
codes to current
o JDK-8229517: Support for optional asynchronous/buffered logging
o JDK-8182043: Access to Windows Large Icons
*OpenJDK 18 Early Access build 1 is now available at
**https://jdk.java.net/18* <https://jdk.java.net/18>
* 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>
* Issues addressed in this build - here
<https://github.com/openjdk/jdk/compare/jdk-18%2B0...jdk-18%2B1>
*Other Topics which might be of Interest: *
**
* Java Cryptographic Roadmap [2] has been updated.
* Inside Java Newscast #6 [3]
o a closer look at the list of JEPs of JDK 17 as well as the
development process
* Inside Java Newscast #7 [4]
o discusses in greater detail `pattern matching for switch`,
previewed in JDK 17
Rgds,Rory
[1]
https://mail.openjdk.java.net/pipermail/jdk-dev/2021-June/005690.html
<https://mail.openjdk.java.net/pipermail/jdk-dev/2021-June/005690.html><https://mail.openjdk.java.net/pipermail/jdk-dev/2021-June/005690.html><https://mail.openjdk.java.net/pipermail/jdk-dev/2021-June/005690.html>
[2] https://java.com/en/jre-jdk-cryptoroadmap.html
<https://java.com/en/jre-jdk-cryptoroadmap.html>
[3] https://inside.java/2021/06/10/insidejava-newscast-006/
<https://inside.java/2021/06/10/insidejava-newscast-006/>
[4] https://inside.java/2021/06/13/podcast-017/
<https://inside.java/2021/06/13/podcast-017/>
--
Rgds, Rory O'Donnell
Quality Engineering Manager
Oracle EMEA, Dublin, Ireland
