Good news for Java Developer’s Community . Java 19 is Arriving in Sep-2022. :-).
From Java1.4 to Java 18 . All downloads
are available .
As per the latest Schedule : Java 19?General Availability will be on 2022/09/20.
This next version of standard Java seems could be loaded with new features that may include a foreign function and memory API, a vector API, pattern matching for switch expressions, universal generics, and many more.
Do You want to get Hands on on Java 19 ?
Then , Download?and install the latest open-source JDK. Oracle’s free, GPL-licensed, production-ready OpenJDK JDK 19 binaries for Linux, macOS, and Windows are available at?jdk.java.net; Oracle’s commercially-licensed JDK binaries, based on the same code, are?here
.
JDK 19?early-access builds
?have been made available for Java Developers , featuring updates from Build 24 that include fixes to various?issues
. More details may be found in the?release notes
.
For?JDK 19
, developers are encouraged to report bugs via the?Java Bug Database
.
Brief overview of JDK 19 features :
- A?preview of record patterns
, to deconstruct record values. Record patterns and type patterns can be nested to enable a declarative, powerful, and composable form of data navigation and processing. Record patterns is part of?Project Amber
, an effort to explore and incubate smaller, productivity-oriented Java features.
- A preview of a?foreign function and memory API
, which would introduce an API by which Java programs can interoperate with code and data outside the Java runtime. By efficiently invoking foreign functions (i.e., code outside the Java runtime) and safely accessing foreign memory (i.e., memory not managed by the JVM) .
- A preview of?virtual threads
, which are lightweight threads that dramatically reduce the effort of writing, maintaining, and observing high-throughput, concurrent applications.
- A third preview of?pattern matching for switch expressions and statements
, extending pattern matching to?switch, to allow an expression to be tested against a number of patterns, each with a specific action, so complex data-oriented queries can be expressed concisely and safely.
- A fourth incubation of a?vector API
?that would express vector computations that reliably compile at runtime to optimal vector instructions on supported CPU architectures, thus achieving performance superior to equivalent scalar computations.
- With the?Linux/RISC-V port
, Java would gain support for a hardware instruction set that is already supported by a wide range of language toolchains. RISC-V actually is a family of related ISAs. The Linux/RISC-V port would only support the RV64GV configuration of RISC-V, a general purpose 64-bit ISA that includes vector instructions. The developers of Java may consider other RISC-V configurations in the future.
Like JDK 18, JDK 19 is due to be a short-term release, with only six months of top-level,?Premier
?support.
The preceding release,?JDK 17
, was a Long Term Support (LTS) release, with several years of support. It arrived September 14, 2021.
If you have suggestions or encounter bugs, please submit them using?the usual Java SE bug-reporting channel
. Be sure to include complete version information from the output of the?java --version?command.
- Early-access (EA) functionality might never make it into a general-availability (GA) release.
- EA functionality might be changed or removed at any time.
- The existence of EA builds does not imply that the functionality being tested will be present in any particular GA release.
- The platforms supported and the packaging options available for a GA build might be different than those available for EA builds.
- EA builds are not tested to the same level to which Oracle tests GA builds. EA builds are produced for the purpose of gathering feedback. Use for any other purpose is at your own risk.
- EA builds might be missing security-vulnerability fixes that are available in GA builds or in other OpenJDK projects.
- Oracle does not provide support for EA builds.
