Obtain IBM support for OpenJDK 8 or 11 with Eclipse OpenJ9 or HotSpot
An OpenJDK with Eclipse OpenJ9 runtime environment combines the open source Java SE class libraries with an enterprise-grade, production Java virtual machine (VM). Because we have been developing and using this VM in IBM products for many years, our service representatives are perfectly placed to handle support calls for any runtime issues.
Monitor the resources used by your Java applications
Understanding the resources that your Java applications are consuming can help you tune your applications to maximize performance and help you make the most efficient use of your server resources. This offering provides IBM Cloud Application Performance Management (APM) software, which uses the J2SE Data Collector to gather real-time data and presents it visually at the APM console.
What is OpenJDK?
The OpenJDK project provides the open source reference implementation of the Java Standard Edition platform.
The source code available at OpenJDK includes a number of components; the Java class library, Java compiler, and the HotSpot Java Virtual Machine. Platform coverage is extensive, which means that OpenJDK binaries of the developer kit and runtime environment can be built for most server and workstation systems. One exception is the z/OS® platform, which is not currently supported at the OpenJDK project.
What is the Eclipse OpenJ9 virtual machine?
The IBM developer kit and runtime environment (IBM SDK, Java Technology Edition) evolved with an independent Java virtual machine (VM) implementation, which was known as the J9 VM. In September 2017, IBM contributed the J9 VM codebase to the Eclipse Foundation, where it is now known as the Eclipse OpenJ9 virtual machine. IBM continues to develop new features and capabilities in the VM in the open community. IBM SDK, Java Technology Edition, Version 8, which powers IBM products such as WebSphere Application Server, embeds the Eclipse OpenJ9 VM and is used by many customers in production workloads worldwide.
You can read more about the capabilities and pedigree of Eclipse OpenJ9 at the Eclipse Foundation website.
What is the AdoptOpenJDK community project?
The AdoptOpenJDK community is an advocate for the OpenJDK project. The community is made up of Java developers, vendors, and members of Java user groups.
The community develop and maintain a build and test infrastructure for the OpenJDK source across a broad range of platforms. Here, they provide nightly builds of OpenJDK binaries that are verified across a large test suite to ensure quality and confidence for anyone who consumes them.
Which platform architectures and operating systems are supported?
IBM support is provided for OpenJDK 8 and 11 with either the Eclipse OpenJ9 VM or the HotSpot VM, as made available by the AdoptOpenJDK project. Binaries are available for a broad range of platforms and are expected to function on the minimum operating system levels described in the AdoptOpenJDK Platform Support Matrix.
When public support for an operating system version ends, OpenJDK builds can no longer be supported on that level.
24 March 2020