The Arrival of Java 19

September 20, 2022 | 10 minute read
Sharat Chander
Director, Java SE Product Management
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­The arrival of Java 19!

 

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Oracle is proud to announce the general availability of JDK 19. This release is the tenth Feature Release delivered on time through the six-month release cadence. This level of predictability allows developers to easily manage their adoption of innovation thanks to a steady stream of expected changes.

 

 

Java’s ability to boost performance, stability, and security continues to make it the world’s most popular programming language. According to an IDC report more than 10 million developers – representing 75% of full-time developers worldwide – use Java.

 

JDK 19 is now available!

 

Oracle now offers JDK 19 for developers, end-users, and enterprises. Oracle JDK 19 will receive performance, stability and security updates following the Oracle Critical Patch Update (CPU) schedule as outlined in the Oracle Java SE Support Roadmap.

 

Oracle JDK 19 is not a long-term support (LTS) release. Oracle JDK 17 (announced on September 14, 2021) is the second LTS  under the release cadence announced in 2018. Oracle has announced plans to shorten the time between future LTS releases, from three years to two years so you should expect the next LTS to be Java 21 in September of 2023.

 

Another important change announced with Oracle JDK 17 was the introduction of a new and simpler license terms which will allow companies to use Oracle JDK 17 – including the quarterly performance, stability, and security patches – at no cost for at least the next three years, allowing one full year of overlap with the next LTS release. Java SE subscribers get access to Oracle’s Java SE Support and commercial features such as GraalVM Enterprise, Java Management Service and the Advanced Management Console. See The New Java SE License Terms blog for details on the new license. 

 

Java 19, Together

 

As with previous releases, with Java 19 we continue to celebrate the contributions from many individuals and organizations in the OpenJDK Community — we all build Java, together!

 

JDK 19 Fix Ratio

The rate of change over time in the JDK releases has remained largely constant for years, but under the six-month cadence the pace at which production-ready features and improvements are delivered has vastly improved.

 

Instead of making tens of thousands of fixes and delivering close to one hundred JEPs (JDK Enhancement Proposals) every few years as we did with yesteryear Major Releases, enhancements are delivered in leaner Feature Releases on a more manageable, predictable six-month schedule. The changes range from significant new features to small enhancements to routine maintenance, bug fixes, and documentation improvements. Each change is represented in a single commit for a single issue in the JDK Bug System.

 

Of the 19,297 JIRA issues marked as fixed in Java 11 through Java 19 at the time of their GA, 13,825 were completed by people working for Oracle while 5,472 were contributed by individual developers and developers working for other organizations. Going through the issues and collating the organization data from assignees results in the following chart of organizations sponsoring the development of contributions in Java:

Chart, treemap chart

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In Java 19, of the 1,962 JIRA issues marked as fixed, 1,383 were completed by Oracle, while 5