Oracle Announces Java 18
Friday, March 25, 2022
New release delivers thousands of performance, stability, and security improvements, and nine JDK Enhancement Proposals
AUSTIN, Texas, March 22, 2022 /PRNewswire/ -- Oracle today announced the availability of Java 18, the latest version of the world's number one programming language and development platform. Java 18 (Oracle JDK 18) delivers thousands of performance, stability, and security improvements, including nine enhancements to the platform that will further improve developer productivity.
The latest Java Development Kit (JDK) provides updates and improvements with nine JDK Enhancement Proposals (JEPs). These include the capability to add Code Snippets in Java API Documentation (JEP 413), which simplifies the addition of sample source code in API documentation, and Simple Web Server (JEP 408) for prototyping and testing. Developers can explore two incubating modules: the Vector API (JEP 417) and the Foreign Function and Memory API (JEP 419), as well as a preview feature: Pattern Matching for Switch (JEP 420).
"The release of Java 18 demonstrates Oracle's continued commitment to provide enterprises and developers faster access to enhancements with the six-month feature release cadence," said Georges Saab, Vice President of Development, Java Platform Group, Oracle. "We continue to make technical investments that improve the performance, stability, and security of the Java SE Platform implementations, as well as the Java Development Kit."
"Java developers want continued innovation with modern programming language features, developer experience enhancements, cloud managed services, and stability," said James Governor, Principal Analyst, RedMonk. "With Java's consistent six-month release cadence Oracle is meeting those demands, helping to keep Java relevant for modern applications and workloads."
Oracle recently introduced Java Management Service (JMS), a new Oracle Cloud Infrastructure (OCI) native service to help manage Java runtimes and applications on-premises or on any cloud. JMS delivers the information needed to manage Java deployments across the enterprise. Java Management Service is included for OCI workloads and for Java SE Subscribers.
Java 18 is the latest release under Java's six-month release cadence and is the result of extensive collaboration between Oracle engineers and other members of the worldwide Java developer community via the OpenJDK Project and the Java Community Process (JCP). This provides a steady stream of innovations while also delivering continued performance, stability and security improvements that will increase Java's pervasiveness across organizations and industries of all sizes. The largest changes delivered in Java 18 are:
-- JEP 400: UTF-8 by Default - Sets UTF-8 as the default charset of the
standard Java APIs. With this change, APIs that depend on the default
charset will behave consistently across all implementations, operating
systems, locales, and configurations.
-- JEP 408: Simple Web Server - A command-line tool and API to start a
minimal web server that serves static files only. This tool will be
useful for prototyping, ad-hoc coding, and testing purposes,
particularly in educational contexts.
-- JEP 416: Reimplement Core Reflection with Method Handles - Reimplements
java.lang.reflect.Method, Constructor, and Field on top of
java.lang.invoke method handles. By making method handles the underlying
mechanism for reflection, it reduces the maintenance and development
cost of both the java.lang.reflect and java.lang.invoke APIs.
-- JEP 418: Internet-Address Resolution SPI - Defines a service-provider
interface (SPI) for host name and address resolution, so that
java.net.InetAddress can make use of resolvers other than the platform's
built-in resolver.
-- JEP 413: JEP Code Snippets in Java API Documentation - Introduces the
@snippet tag for JavaDoc's Standard Doclet to simplify the inclusion of
example source code in API documentation.
-- JEP 417: Vector API (Third Incubator) - Provides an API for developers
to reliably leverage CPU architectures that provide scalable vector
extensions. This will lead to superior performance compared to
equivalent computations on non-extended processors.
-- JEP 419: Foreign Function and Memory API (Second Incubator) - Enables
Java programs to interoperate with code and data outside of the Java
runtime. By efficiently invoking foreign functions (i.e., code outside
the JVM), and by safely accessing foreign memory (i.e., memory not
managed by the JVM), the API enables Java programs to call native
libraries and process native data without the brittleness and pitfalls
of JNI.
-- JEP 420: Pattern Matching for Switch (Second Preview) - Enhances the
Java programming language with pattern matching for switch expressions
and statements, along with extensions to the language of patterns.
Extending pattern matching to switch allows an expression to be tested
against a number of patterns, each with a specific action, so that
complex data-oriented queries can be expressed concisely and safely.
-- JEP 421: Deprecate Finalization for Removal - Finalization remains
enabled by default for now, but can be disabled to facilitate testing.
In a future release, it will be disabled by default, and in a later
release, it will be removed. Maintainers of libraries and applications
that rely upon finalization should consider migrating to other resource
management techniques such as the try-with-resources statement and
cleaners.
The Oracle Java SE Subscription, a predictable pay-as-you-go offering, provides customers with best in class support, entitlement to GraalVM Enterprise, access to the Java Management Service, and the flexibility to upgrade at the pace of their business. This helps IT organizations manage complexity, contain costs, and mitigate security risks.
-- Download Oracle JDK 18
-- Read the Java 18 technical blog
-- Register for JavaOne
-- Watch Oracle Developer Live: Java Innovations
-- Learn more about Java Management Service
-- Learn more about the Oracle Java SE Subscription
Oracle offers integrated suites of applications plus secure, autonomous infrastructure in the Oracle Cloud. For more information about Oracle (NYSE: ORCL), please visit us at www.oracle.com.
Oracle, Java, and MySQL are registered trademarks of Oracle Corporation. Other names may be trademarks of their respective owners.
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SOURCE Oracle
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