![]() IBM produces JDK SE 8 binaries with IBM J9 VM for AIX, Linux ®, and z/OS platforms. Zulu Enterprise offers access to LTS updates for 8 years. The same Java versions designated as LTS by Oracle and Open JDK community are designated as LTS by Zulu, too. Zulu is free to download and use but the security updates and bug fixes are only provided under Zulu Enterprise subscription. Zulu is available for Linux, Windows, macOS, Solaris, and Docker. ![]() Zulu is a certified JDK build by Azul Systems. Otherwise, an additional subscription for OpenJDK in windows is required. Windows systems used with Red Hat Middleware subscription include a Red Hat OpenJDK subscription, too. The subscription for RHEL includes also a subscription for Red Hat OpenJDK. The updates and support for Red Hat OpenJDK require a subscription. Red Had provides OpenJDK builds for RHEL and Windows. SAP is also one of the biggest external contributors to the OpenJDK project. The goal of the SapMachine team is to keep SapMachine as close as possible to OpenJDK. Currently, SapMachine 11 is an LTS release, which has passed the TCK for Ubuntu, macOS, Windows, SLES, and RHEL. SapMachine is an SAP-supported version of OpenJDK offered under GPL + CE license. Correto is available for popular operating systems such as Linux, macOS, and Windows. Correto 11, corresponding to OpenJDK 11, is recently released in preview mode and will receive quarterly updates until at least August 2024. Correto 8 can be used as a substitute for OpenJDK 8 and will be quarterly updated by Amazon until at least June 2023. Amazon CorretoĪmazon Correto is a certified OpenJDK distribution provided by Amazon under GPL + CE license (which means free to use in production). Additionally, every three years, one feature release is designated as LTS. a new feature release every six months and maintenance/security updates every three months. ![]() Nevertheless, they claim that their binaries undergo extensive testing from all available OpenJDK test suites.ĪdoptOpenJDK release roadmap follows the schedule of OpenJDK, i.e. The latter is a JVM developed by IBM and is now contributed to the Eclipse community.ĪdoptOpenJDK is still working with Oracle to reach an agreement to use Java SE TCK. The former is the JVM from the OpenJDK community and it is the most used JVM (also in Oracle JDK). AdoptOpenJDKĪdoptOpenJDK offers OpenJDK binaries either with HotSpot JVM or with OpenJ9 JVM. ![]() The sorting does not represent any significance. The following is a list of JDK vendors with some basic information about their release schedule, TCK compatibility, and supported platforms. Once a build passes the TCK, it can be referred to as ‘Java SE compatible.’ The certification process requires a commercial license from Oracle. The Java Community Process (JCP) provides a Technology Compatibility Kit (TCK) to certify whether a JDK build meets the Java standards. The majority of them are based on the OpenJDK source hosted in a Mercurial repository. There are many other vendors offering JDK binaries. Therefore, if you want to stay up to date, every six months you have to upgrade the latest OpenJDK available. Here is the catch: with the new release cadence, every six months a new feature version of OpenJDK will be released, and Oracle is only going to provide quarterly updates for the latest version of Oracle OpenJDK. Since Oracle OpenJDK is provided under the GPL + CE license, everyone is free to use it commercially. Therefore, Oracle JDK 11 and Oracle OpenJDK 11 are now interchangeable. However, Oracle contributed all the JDK features to OpenJDK 11. Unfortunately, the keyword ‘but’ comes here again. ![]() It is free for developing, testing, prototyping and demonstrating, but is not to be used in production. Oracle JDK 11 is the newest Long Term Support (LTS) version. One option is to upgrade to a newer JDK version offered by Oracle itself. Fortunately, there are several solutions to this problem. In reality, ‘nothing someone says before the word but really counts.’ The updates that include security patches and bugfixes could be very important. What Is NOT Free?įirst, to clarify, you can continue using Oracle JDK 8 indefinitely, but Oracle will not provide public updates for commercial use after January 2019. In this post, we are giving an overview of some vendors offering JDK binaries, which version of the JDK they provide, and their support plan. Since Oracle JDK 8 is going through the End of Public Updates process and Oracle has changed the Terms and Conditions for using newer Oracle JDK versions, the attention is shifting towards other JDK vendors. ![]()
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