An estimated 15 billion devices run Java™ worldwide . Until January 2019, no one had to pay for access to a current Java Virtual Machine (JVM), but Oracle implemented a significant change to its release cadence and support model. Oracle JDK is no longer free for production workloads and patches, leaving organizations with a choice to either pay Oracle for continued production support and updates for Oracle JDK, adopt OpenJDK and upgrade every six months, or migrate to an alternative OpenJDK implementation.
The impact to the Java community is tremendous because 70% of Java developers use the Oracle JDK JVM. The Red Hat® build of OpenJDK is a free and open source implementation of the Java Platform, Standard Edition (Java SE). It is an alternative that will allow your organization to stabilize and standardize your Java environments for years to come with little to no transition effort.
The Red Hat build of OpenJDK offers a number of features and benefits.
Table 1. Benefits
|Open source innovation||Red Hat is a member of the OpenJDK Governing Board and is the second largest contributor (behind Oracle).|
|Cost savings||OpenJDK support is included in Red Hat Enterprise Linux®, Red Hat Middleware, and Red Hat Runtimes subscriptions. A standalone Windows subscription is also available for purchase.|
|Multiplatform support||OpenJDK is tightly integrated with Red Hat Enterprise Linux and is supported on Windows.|
|OpenJDK includes Mission Control1 which is a tool suite for managing, monitoring, profiling, and troubleshooting Java applications. It is useful for understanding application behavior such as memory leaks, deadlock, and much more.|
|Long-term support||Red Hat provides long-term support for OpenJDK versions 7, 8, and 11. Support duration is 6 years from the time that a major version of OpenJDK is first introduced in the particular version of Red Hat Enterprise Linux, or until the retirement date of the underlying version of Red Hat Enterprise Linux, whichever comes first.|
|Frequent releases||Red Hat expects to deliver 4 updates per year and timely
security fixes for the OpenJDK 8 and 11 distributions.