![]() Migrate at scale in iterations: Use the OpenJDK migration factoryĪs the second largest JDK contributor next to Oracle, Red Hat can help you and your organization build, manage, and scale your applications with the support and services you need. ![]() Run pilot migration with a set of applications: Run a representative set of apps has run through the process (changes if any, testing, deployment) and form an updated migration plan.Prepare operational handling (deployment and updates): Get ready operational processes to deploy and manage your JDK.Analyze applications for potential code changes or risk: Identify in an initial migration plan any areas that represent risk or require change.Create an inventory of applications and JVMs/versions: Understand existing usage, Oracle licensing, versions, security issues, dependencies, and grouping.The recommended approach follows five steps. Red Hat and its range of system integration partners have the expertise to facilitate a successful migration to OpenJDK. What can you do to modernize the JDK of your Java applications? Plus, with the newest pricing changes by Oracle, you and your organizations may explore a change to OpenJDK. One caution when evaluating the JDKs: if you are migrating from an older version of OracleJDK, such as Java 8, if an application made use of internal and unspecified APIs, they may not be part of the OpenJDK code base. If it is, migrating to OpenJDK can be beneficial because OpenJDK is the default Java distribution for Linux Ubuntu, Fedora, RHEL, and OpenSUSE distributions. Something else to consider is whether your stack is Linux based. Large organizations may also need to assess their needs for support and stability. Many Java experts encourage users to migrate to OpenJDK as soon as possible, noting that a healthy migration strategy should start with a thorough inventory and risk analysis. Considering the few feature differences, it is up to you to decide which offers more advantages and move forward with the migration.įrom cost to Java support need, there are many factors to consider when considering which JDK to choose. ![]() This method of Java deployment ensures the Java runtime only contains the parts of the Java platform that are truly needed by applications, therefore increasing security, reducing deployment size, and enhancing performance, for both Cloud and server-based Java applications as well as desktop/GUI applications.Between OpenJDK and Oracle JDK, there are no differences in how both JDKs perform with Java SE specification compliant code. We have also added a new article to help users, both at Microsoft and customers, on how to produce Java runtimes using jlink. Release notes can be found in our documentation. Updates to winget, Homebrew and other package managers will follow soon. For container images, we will be pushing those in the coming days. The Linux package repositories are also updated. The macOS M1 release is a major step for us particularly, as Microsoft has a substantial number of Java developers working on Apple hardware and we want to ensure they can upgrade to M1 devices to take advantage of the hardware advancements, to enhance their productivity.Īll these binaries are available for download on the Microsoft Build of OpenJDK website. This release is key to the backport efforts initiated by Microsoft through JEP 388 (Windows/AArch64 Port) and the collaboration between Microsoft and other OpenJDK vendors on JEP 391 (macOS/AArch64 Port). Today we are also releasing for the first time, the general availability of AArch64 binaries of Java 11 and Java 16 for Windows and Linux (ARM64), and Java 16 for macOS (M1). General availability of AARch64 for ARM64 and M1 For most of these services, we will be updating with Zulu for Azure July PSU. On Azure services where Microsoft manages the Java runtime on behalf of the customer, we will be rolling out updates throughout the remainder of this year without any impact on customers’ workloads. Today we are announcing the July PSU for Java 11 and Java 16 for Microsoft Build of OpenJDK, the GA of AArch64 builds, and we are also glad to see the Eclipse Temurin distribution has released its first binaries, including OpenJDK HotSpot for Java 8.Īzure customers and developers are welcome to upgrade to these binaries to benefit from performance enhancements, security patches, and bug fixes. Therefore, Microsoft will no longer deploy updates of Zulu for Azure starting January 1 st, 2022. As previously announced in April, by the end of 2021 Microsoft will be using Microsoft Build of OpenJDK for Java 11 and later versions, and the Eclipse Adoptium’s Temurin distribution for Java 8 across all of Microsoft Azure services, products, and developer tools.
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