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NOW GENERALLY OPENJDK AVAILABLE MICROSOFT SOURCE FOR FREE
NOW GENERALLY OPENJDK AVAILABLE MICROSOFT SOURCE PRO
NOW GENERALLY OPENJDK AVAILABLE MICROSOFT SOURCE CODE
NOW GENERALLY OPENJDK AVAILABLE MICROSOFT SOURCE FREE

It was originally built to run on mobile devices with limited memory and it’s been optimized for fast startup, lower memory footprint, and quick ramp-up. Per Eclipse, it is a “high performance, scalable, Java virtual machine (JVM) implementation that represents hundreds of person-years of effort.”

Eclipse OpenJ9Įclipse OpenJ9 is an IBM contribution to the Eclipse Project. It has some cryptography differences, slightly newer timezone data (taken from RHEL/CentOS), and includes a JavaFX and Java Web Start implementation. It is baselined from OpenJDK and TCK compliant, and it may include bug fixes for RHEL/CentOS ahead of incorporation into OpenJDK.

NOW GENERALLY OPENJDK AVAILABLE MICROSOFT SOURCE CODE

Red Hat claims its OpenJDK build is “functionally very similar” to Oracle’s and “should require little to no changes”, although it’s likely to require some code changes.

Quarterly and out-of-band security updates and bug fixes.

No proprietary licenses or “field of use” restrictions.

Lower price than an Oracle Java SE subscription.

Azul Platform CoreĪzul Platform Core, formerly Zulu, presents itself as a cost-effective Java support alternative to Oracle and a way to “get Java without lock-in risk.” Key features include: It’s optimized for Linux server deployments and designed for enterprise applications and workloads that require large memory, high transaction rates, low latency, and consistent response times. Per Azul, thanks to Zing, “…Java apps can scale to high levels of performance with unprecedented response time consistency and meet your most demanding service level requirements – without application changes or even recompilation.”Īzul also claims that Zing is the “only JVM that eliminates Java garbage collection pauses for large heap sizes” and solves issues with GC that have plagued developers since Java’s inception. Azul Platform PrimeĪzul Platform Prime, formerly Zing, is fully TCK compliant with the Java SE 11, 8, or 7 specifications. … We are now excited to continue building on this work by producing binaries based on OpenJDK 11 for 圆4 platforms covering the three major operating systems and to share this work with the Java community and our Microsoft Azure customers.” Regarding TCK compliance, Microsoft reports that “Our binaries for Java 11 have passed the Java Technology Compatibility Kit (TCK) for Java 11." 2. Per Microsoft: “Over the past 18 months, we contributed more than 50 patches covering areas such as MacOS packaging, build and infrastructure, GC fixes, and enhancements for Windows.

NOW GENERALLY OPENJDK AVAILABLE MICROSOFT SOURCE PRO

They’re also publishing an early-access binary for Java 16 for Windows on ARM, based on the latest OpenJDK 16+36 release, and providing a port to Windows ARM ( JEP-388 ) for Surface Pro X. It’s TCK compliant for Java 11 and includes binaries for Java 11, based on OpenJDK 11.0.10+9, on 圆4 server and desktop environments on macOS, Linux, and Windows.

NOW GENERALLY OPENJDK AVAILABLE MICROSOFT SOURCE FREE

It’s an open-source, no-cost long-term support (LTS) distribution of OpenJDK that is free for anyone to deploy anywhere. They are essentially providing Windows-specific optimizations that haven’t made it back to the OpenJDK source code yet. Microsoft just announced its own OpenJDK build.

Here’s a run-down of the most commonly used ones and their primary offerings. With all these choices, we felt like it was a good time to review the currently available OpenJDK builds. And others (e.g., Zulu and AdoptOpenJDK) appear to be trying to become a non-Oracle supplier of builds with their own (ostensibly cheaper) support contracts. Others (e.g., Zing and OpenJ9) are adding technology in some way. Some of them (e.g., Microsoft, Red Hat, and Amazon Corretto), seem to have a self-serving purpose-namely, to help Java run better (or at all) on their own technology. Now, well into 2021, we’re at the point where there are many alternatives to the original Oracle JDK build.

NOW GENERALLY OPENJDK AVAILABLE MICROSOFT SOURCE FOR FREE

Ever since Oracle, in 2018, split its JDK build licensing into two tiers-commercial, which can be used for free in development and testing but you have to pay to use it in production, and open-source, which is free in any environment-quite a few open-source builds based on the OpenJDK source code have appeared.