JDK 17 is now in Rampdown Phase Two

[Rory O'Donnell]

Hi Evgeny/Marc,

 

Per the JDK 17 schedule , we are in Rampdown Phase Two [1].

Please advise if you find any issues while testing the latest Early Access builds. 

• Schedule: 

• 2021/07/15        Rampdown Phase Two 
• 2021/08/05        Initial Release Candidate 
• 2021/08/19        Final Release Candidate 
• 2021/09/14        General Availability 

The overall feature set is frozen. No further JEPs will be targeted to this release.  

 

• Features integrated in JDK 17:  

• JEP 306: Restore Always-Strict Floating-Point Semantics  
• JEP 356: Enhanced Pseudo-Random Number Generators  
• JEP 382: New macOS Rendering Pipeline  
• JEP 391: macOS/AArch64 Port  
• JEP 398: Deprecate the Applet API for Removal  
• JEP 403: Strongly Encapsulate JDK Internals  
• JEP 406: Pattern Matching for switch (Preview)  
• JEP 407: Remove RMI Activation  
• JEP 409: Sealed Classes  
• JEP 410: Remove the Experimental AOT and JIT Compiler  
• JEP 411: Deprecate the Security Manager for Removal  
• JEP 412: Foreign Function & Memory API (Incubator)  
• JEP 414: Vector API (Second Incubator)  
• JEP 415: Context-Specific Deserialization Filters  

OpenJDK 17 Early Access build 31 is available at https://jdk.java.net/17  

• These early-access , open-source builds are provided under the 
• GNU General Public License, version 2, with the Classpath Exception 
  
• Release Notes are available at https://jdk.java.net/17/release-notes  

 

OpenJDK 18 Early Access build 6 is available at https://jdk.java.net/18  

• These early-access , open-source builds are provided under the 
• GNU General Public License, version 2, with the Classpath Exception
  
• Release Notes are available at https://jdk.java.net/18/release-notes
  
• Changes in recent builds that maybe of interest: 
• JDK-8269697: JNI_GetPrimitiveArrayCritical() should not accept object array [build 6]
• JDK-8253119: Remove the legacy PlainSocketImpl and PlainDatagramSocketImpl implementation [build 6]
• JDK-8268960: Prohibit Null for Header Keys and Values in com.sun.net.httpserver.Headers [build 5] 
• JDK-8256425: Obsolete Biased Locking in JDK 18 [build 4] 

 

Topics of Interest:   

• ‘Inside Java’ Podcast #18: Java's steady march towards strong encapsulation

  

Rgds,Rory  

  

[1] https://mail.openjdk.java.net/pipermail/jdk-dev/2021-July/005752.html

[Marc Hoffmann]

Hi Rory,

the only open issue is JDK-8270090 — a reproducible JVM crash when running with fastdebug.

I wonder why this issue has been deferred to Java 18.

Cheers,

-marc

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[Rory O'Donnell]

Hi Marc,

You should probably follow up with Aleksey Shipilev, he is driving ARM32 in openjdk not Oracle.

Rgds,Rory

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