JDK 16 begins to take shape

Matthew N. Henry

Even though not owing to get there until finally March 2021, Java Improvement Kit (JDK) 16 is commencing to consider condition, starting up with enabling C++ 14 language functions in JDK C++ source code.

JDK 16 will be the reference implementation of the version of typical Java set to observe JDK fifteen, which is owing on September fifteen. The 6-month launch cadence for typical Java would have JDK 16 arriving following March.

As of July 29, three proposals had been targeted to JDK 16:

  • Enablement of C++ 14 language functions, to let the use of C++ 14 capabilities in JDK C++ source code and give unique steering about which of these functions may well be utilized in HotSpot VM code. As a result of JDK fifteen, language functions utilized by C++ code in the JDK have been constrained to the C++ninety eight/03 language specifications. With JDK 11, the source code was up-to-date to guidance making with newer versions of the C++ typical. This includes staying able to create with latest versions of compilers that guidance C++ 11/14 language functions. This proposal does not suggest any style or usage alterations for C++ code that is utilized exterior of HotSpot. But to consider advantage of C++ language functions, some create-time alterations are expected, based on the system compiler.
  • Migration of OpenJDK source code repositories from Mercurial to Git. Driving this energy are strengths in version command procedure metadata sizing and accessible applications and hosting.
  • Migration to GitHub, relevant to the Mercurial-to-Git migration, with JDK 16 source code repositories to be on the popular code-sharing web page.

Early-obtain builds of JDK 16 for Linux, Home windows, and MacOS can be located at jdk.java.net. Like JDK fifteen, JDK 16 will be a limited-expression launch, supported for 6 months. JDK 17, owing in September 2021, will be a extensive-expression guidance (LTS) launch that will acquire many a long time of guidance. The recent LTS launch, JDK 11, was launched in September 2018.

Copyright © 2020 IDG Communications, Inc.

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