ZGC Concurrent Thread-Stack Processing eliminates bottlenecks to allow for concurrent stack processing. Saab said Oracle also has added some "increased goodness" to the Java Virtual Machine by implementing the Elastic Metaspace feature, as well as concurrent thread-stack processing with the Z Garbage Collector (ZGC).Įlastic Metaspace returns unused HotSpot class-metadata or metaspace memory to the operating system quickly, reduces the metaspace footprint and simplifies the metaspace code, which cuts down on maintenance costs. "And having early access builds available during the development of each of these releases has helped." "One of the goals that we had with the six-month release cadence was really making it easier for the ecosystem to adjust to new releases more quickly," Saab said. Oracle delivers Java updates every six months to provide developers with a predictable release schedule. These enhance Java with sealed classes and interfaces, which restrict other classes, or interfaces may extend or implement them, said Georges Saab, vice president of development in the Java platform group at Oracle. In addition, there are three new incubating features in Java 16: The Vector API, the Foreign Linker API and the Foreign-Memory Access API, as well as one preview feature, Sealed Classes. These features were finalized in JDK 16 after a year of community feedback based on real-world applications. Java Record enhances Java with records, which are classes that act as transparent carriers for immutable data. Pattern Matching for instanceof enhances Java with pattern matching for the instanceof operator. Other new features include the completed versions of the Pattern Matching for instanceof and Records language enhancements that were first previewed in Java 14. Meanwhile, as an interim release Java 16 contains new features such as the Packaging Tool or jpackage, a new tool for packaging self-contained Java applications. That means Oracle will support the next release for a minimum of three years.
The info on how to set the environment variables I took from this guide.This latest release is the last one before Oracle delivers JDK 17, which will be a long-term support (LTS) release. Now you should be able to run java.exe from the cmd.
(Speaking about a Windows machine) You also need to put the \bin folder of the JDK as the first folder in the Path environment variable, like this: Path=%JAVA_HOME%\bin other folders here
This means that once you download the JDK, you can have the JAVA_HOME environment variable point to the JDK folder, like this: JAVA_HOME=\path\to\jdk-12 Help you develop, execute, debug, and document programs written in the This directory also includes tools and utilities that will Support the execution of programs written in the Java programming The JRE includesĪ Java Virtual Machine (JVM™), class libraries, and other files that Implementation of the Java Runtime Environment (JRE).
In the JDK 12 Readme you will find the following: You likely are not pointing to the correct location within the JDK12 installation directory. The only reason you cannot run the java command inside a command prompt is due to a system variable issue.
The equivalent version of Java SE Runtime Environment 8 is the Java SE Development Kit 12.0.1.
The Oracle JDK license changed with the release of Java 10. I couldn't find a fitting JRE (like JRE 12 or so). Everything that you needed was installed by the Java SE Development Kit 12.0.1. You already have the Java Runtime Environment installed. Where can I get the JRE 12 or however what it's called now? The Java Runtime Environment (JRE) has always been included in the Java Development Kit (JDK).
The only way you would be able to compile software is if you had the java runtime environment installed. This way you can have multiple instances of Java Runtime Environment installed and point to the version the project should use. In my experience IntelliJ uses it's own implementation to determine the location of the Java bin location. The JDK seems to be enough when I work within IntelliJ, but I cannot run the java command inside the cmd.