A few weeks ago, I discussed with a colleague about the new licensing model of Oracle Java.

Customers may have concerns about this, since until now a customer was used to be entitled to download Java Updates for free. At least I was.

During the discussion I posed a way of thinking that made sense to me, and that seems to be supported by document references.

For some time now you can download Open JDK, which is an open source reference implementation based on Oracle JDK, as I understand it. It states that it is a production ready. Although this story may be a bit more nuanced as I state here. In the past it was considered to be inferior to the Oracle JDK, whilst the Oracle JDK was also free. With the new release cycles, introduced with Java 9, Oracle committed to make OpenJDK as indistinguishable from OracleJDK as possible. So functional and security features are up to the level of Oracle JDK.

In short, if you don't want to pay for support you can go and use Open JDK. Or stay on your current version.

But, since Oracle is a Sales based organization, I'm not surprised if they want to be payed for delivering (Long Time) support on Java. Especially, when more and more software is from other vendors is based on Java, and when the competitors of Cloud platforms rely on it.

If you want to have support for Java, you should have a Support contract.

I mentioned already above, but what also changed, with Oracle 9, is the release cycle. Until Oracle Java 8, Oracle supported the JDK for a very, very long time. The globally, publicly available major Java versions were released in a few years pace. Java 7 was around for around 4 years, before Java 8 was released. Java 8 has been a round for 5, before Java 9 saw the light.

To get more in pace with the developments in the market, Oracle decided to start with half-yearly release cycles, starting with Java 9 in 2017. And now with every 6 months, a new Java version is released with new features. Features that do not make the cut, are delayed to the next release when they are ready. But the major Java version gets released. With that, also the support of the version is changed: the support on the release only lasts for the live span of the release, which is 6 months. To keep up with security and features, you to need to move on to the next major version, to keep supported. Currently we're at Java 12, from march '19.

If you can't keep up with that, Oracle provides a Long Time Support version, that is supported for time frame comparable of those of Java 6, 7 and 8. One of those half yearly releases are denoted LTS, and currently it is Java 11. It's most comparable with for instance RedHat Linux, providing Fedora as an open, publicly available version (like OpenJDK) and ReadHat Enterprise Linux, which is the LTS version.


Now, what if you have Licenses for Oracle products that rely on Java? Fusion Middleware, for instance, is only supported on Oracle Java, currently Oracle Java 8. You may have licenses for Weblogic, Coherence, Forms & Reports, etc. In those cases you have a restricted license of Oracle Java. Much like when you have an E-Business Suite, Siebel or any other Enterprise Information System of Oracle that uses the database. Then you can use the database, when you use it to support that setup. You cannot run custom code in it, do reporting on it or use the database in any other way.

The same counts for Java. If you run Weblogic, or have an application that uses Coherence, etc., you're entitled to download the updates for Java. See for instance this document about Restricted Oracle Java SE License in combination with Weblogic, or Support Entitlement for Java SE When Used As Part of Another Oracle Product. Also interesting: you can file support requests against that Oracle product, but not directly against Java SE, unless you have Java Support.

And, products like SQLDeveloper, sqlcl and ORDS are supported through the Database license, which also uses Java. So, having a Database license, you have support on SQLDeveloper and the Oracle Java, used by SQLDeveloper.

Notice that if you have a Weblogic License, but also have a custom java application not running in a Weblogic instance, it's not allowed to use the same JDK Updates! If the application uses HTTP to communicate with a Weblogic Server, for instance to call a REST or SOAP Service, you're not allowed to download updates for that Java Home.

Also, if you hava a custom java application that uses JDBC drivers to connect to a licensed Oracle database, then you're not allowed to download the Java updates. Oracle states that the JDBC drivers do not use an Oracle product-specific protocol.

I encountered a little while ago that JavaDB is not delivered with Oracle JDK anymore. I suppose that this is related to the changed licensing of Java.

I hope that this little article makes sense, to you and helps to understand the licensing model.

To sum up, the options you have

1. Stay on the version you currently use, with out changes. If you can live or cope with being behind with security updates, this can be an acceptable choice.
2. Keep up with the 6 months major version update pace, you can use OpenJDK. You keep up to date with the major versions and are secure.
3. Stay on a LTS release and move with to another LTS at your own pace (but only for Oracle JDK).

This article have been simmering for a few weeks, since I've been busy with other stuff and I've got some review tips. But today I saw an article of Jeff Smith on the Oracle JDK with SQL Developer. So, this triggered me to update this article right away.

I did my best to blend my thoughts, with the review tips, and the notes of support. I put down what I think and learned in my own words, but I might have rephrased things a bit incorrectly.  Check out these more formal articles and statements: