Java support deadline. It's very confusing in the transitional period. Oracle Java SE Advanced is paid, and OpenJDK and Oracle JDK are free.
| version | LTS | Release date | OpenJDK Support deadline For RedHat |
Oracle JDK Support deadline |
Oracle Java SE Advanced Extended support |
|---|---|---|---|---|---|
| 6 | ○ | December 2006 | December 2016 | April 2013 | December 2018 |
| 7 | ○ | July 2011 | June 2018 | April 2015 | July 2022 |
| 8 | ○ | March 2014 | October 2020 | [Commercial use] January 2019 [Personal use] December 2020 |
March 2025 |
| 9 | × | September 2017 | March 2018 | None | |
| 10 | × | March 2018 | September 2018 | None | |
| 11 | ○ | September 2018 | After September 2023 | September 2026 | |
| 17 | ○ | September 2021 | After September 2026 |
LTS (= long-term support) starts from version 11, has 5 years of support, and is released every 3 years. Since it was long-term support before 8, we made it equivalent and circled LTS.
In this release cycle, isn't it strange that 9 should also be LTS? The transition period from 8 to 11 is only 4 months. Well, maybe the commercial use of version 8 will eventually turn into support until December 2020. Also, I would like OpenJDK and Oracle JDK to have the same support deadline. I want all Java 8 to be in December 2020.
The support deadline for OpenJDK for Ubuntu LTS has not been announced. The default-jdk for Ubuntu 16.04 is 8. In Ubuntu 18.04, the default-jdk is openjdk-11-jdk, but the content is Java 10, and as soon as Java 11 is released, we will switch to Java 11 for long-term support. https://lists.ubuntu.com/archives/ubuntu-release/2018-February/004275.html
Short-term support Java will end immediately when the next one is released, so this seems to be used only by developers. It will be a verification treatment to prepare for the next long-term support Java.
If you set it to "5 years support, release every 2 years" like Ubuntu LTS, there is a transition period of 3 years, and if it is every 2 years, the difference in changes is small, so I think that is better. ..
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