IBM's Eclipse OpenJ9 Is A Promising Open-Source JVM
Written by Michael Larabel in Free Software on 18 September 2017 at 08:10 AM EDT. 19 Comments
For those that missed the news over the weekend, IBM has open-sourced its in-house JVM and contributed it to the Eclipse Foundation. Eclipse OpenJ9 is this new, full-featured, enterprise-ready open-source Java Virtual Machine.

OpenJ9 is a new alternative to the Hotspot JVM currently used within OpenJDK. OpenJ9 is said to be more featureful and production-ready and comes with the full backing of IBM.

"The long term goal of the Eclipse OpenJ9 project is to foster an open ecosystem of JVM developers that can collaborate and innovate with designers and developers of hardware platforms, operating systems, tools, and frameworks. The project welcomes collaboration, embraces fresh innovation, and extends an opportunity to influence the development of OpenJ9 for the next generation of Java applications," explains the OpenJ9 GitHub.

As of this weekend there are now prebuilt binaries available with OpenJDK 9 using the OpenJ9 JVM.

It sounds like we may end up seeing better performance too out of OpenJ9 over Hotspot, so I may end up trying it on some benchmarks. More details on the new project at

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Michael Larabel is the principal author of and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and automated benchmarking software. He can be followed via Twitter or contacted via

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