#JDK VS OPENJDK UPDATE#
#JDK VS OPENJDK CODE#
#JDK VS OPENJDK FREE#

OpenJDK comes in various flavors, offered by different providers. GraalVM performs well on the Scala benchmarks, and it benefits from GraalVM runtime and runs faster too. Most JDK 11+ users are using OpenJDK, or GraalVM which runs in the context of OpenJDK. JDK 8 users typically use the Oracle JDK or some flavor of OpenJDK.

#JDK VS OPENJDK FREE#

In almost every case, youвЂ™re free to use the JDK and JVM of your choice.

#JDK VS OPENJDK CODE#

(For example, later in the 2.13.x series we hope to provide support for JPMS module access checks, to ensure your code wonвЂ™t incur LinkageErrors due to module access violations.) JDK vendors and distributions We will give higher priority to bugs that break this property. (Lightbend may be able to offer faster resolution of issues like this under commercial support.)ДЄs already mentioned, Scala code compiled on JDK 8 should run without problems in later JVMs. We may also test non-LTS versions, but any issues found there are considered lower priority, and will not be considered release blockers.

The current LTS versions are normally tested in our CI matrix and by the Scala community build. Scala provides experimental support for running the Scala compiler on non-LTS versions of the JDK. These versions will remain supported (by Oracle, and likely by the rest of the ecosystem, including Scala) for longer than the versions in between. (For this reason, some Scala developers use JDK 11 or 17 for their daily work but do release builds on JDK 8.) Long Term Support (LTS) versionsДЄfter Java 8, Oracle introduced the concept of LTS versions of the JDK. If you compile on JDK 11+ but want to allow your users to stay on 8, additional care is needed to avoid using APIs and features that donвЂ™t exist in 8. JDK 8 remains in use at many shops (as of early 2022), but usage is declining and some projects are dropping support. Since the JVM is normally backwards compatible, it is usually safe to use a newer JVM for running your code than the one it was compiled on, especially if you are not using JVM features designated вЂњexperimentalвЂќ or вЂњunsafeвЂќ. JDK 8, 11, and 17 are all reasonable choices both for compiling and running Scala code. The linked page includes contact information for inquiring about supported and recommended versions. Lightbend offers commercial support for Scala 2. In general, Scala works on JDK 11+, including GraalVM, but it probably wonвЂ™t take special advantage of features that were added after JDK 8. (But Scala 2.12+ definitely doesnвЂ™t work at all on JDK 6 or 7.) Version compatibility table JDK versionД®ven when a version combination isnвЂ™t listed as supported, most features may still work.

#JDK VS OPENJDK UPDATE#

Sometimes new JVM and JDK (Java Development Kit) versions require us to update Scala to remain compatible. (Other supported platforms: Scala.js, Scala Native.) ScalaвЂ™s primary platform is the Java Virtual Machine (JVM).

Jdk vs openjdk