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OpenJDK support plans?

Steve M

Oracle is changing (or has changed) their Oracle JDK support structure. We need to buy Oracle JDK licenses (not just the support contract) from Oracle JDK 1.8 onwards. This is going to make Atlassian product deployment using VMs very costly since Oracle doesn’t recognize VMWare VM technology and we will need to pay for all the physical cores on the ESXi servers.

I would like you to get more information on the following items

Does Atlassian have any plans on supporting Open JDK. If yes, when do they plan to support it.
If Atlassian is not planning to support Open JDK and only works with Oracle JDK, how does the support model work. If we buy the Atlassian support for all of the products, does it cover Oracle JDK support also? If not, what are the options?

Accepted answers

Andy Heinzer

Bitbucket already has openjdk for their Bitbucket supported platforms

However both Jira and Confluence do not currently support environments that are using openJDK for the java runtime environment yet.

There are existing feature requests for each product in:

https://jira.atlassian.com/browse/CONFSERVER-16431
https://jira.atlassian.com/browse/JRASERVER-41589

I would suggest watching each of these for updates. Should a future release of either product begin to support that Java runtime environment, I would expect these feature requests to indicate that specific version and then our documentation to be updated to reflect that.

That said, is there a reason you need to be using the Oracle JDK over the Oracle JRE? Both Jira and Confluence can simply using the Oracle JRE instead of the Oracle JDK package to run. So if you don't need to the specific features that the JDK is offering, it might not be necessary to use that package to still run Jira/Confluence in a supported environment.

All comments

Andy Heinzer

Bitbucket already has openjdk for their Bitbucket supported platforms

However both Jira and Confluence do not currently support environments that are using openJDK for the java runtime environment yet.

There are existing feature requests for each product in:

The Oracle license change appears to affect all versions of Oracle Java SE according to http://www.oracle.com/technetwork/java/eol-135779.html, not just the JDK. I'm also curious how Oracle Java licensing wiill work with Atlassian products if you won't support OpenJDK for all of your products.

Steve M

@Andy Heinzer

Does Oracle JRE comes bundled with Atlassian products or do we need to download and install the Oracle JRE separately.
If they do come bundled, how quickly are Oracle JRE version upgrades supported by Atlassian products. For example, when Oracle JRE 11 is released in Sep/Oct, 2018 how quickly can Atlassian products support the new version?
If it comes bundled, is Atlassian responsible for Oracle JRE support via our DataCenter license? If we have a Oracle JRE that is out of public updates, who is responsible for Oracle JRE security patches/updates?

Thanks for your help.

Andy Heinzer

Yes, Atlassian has been bundling JREs with .bin and .exe installation packages, at least for Jira. I think the same is true for Confluence as well. Whereas if you use the zip or tar.gz installation packages, I don't think these actually have a bundled JRE with them.

These JREs don't always get updated with each Jira version. For example, Jira 7.2.0 and 7.2.1 are most likely bundled with the same JRE version. I don't have any timetable for when Jira might ship that bundled JRE 11 version, however I would expect that the supported platforms information for Jira would be updated before or about the same time that such support is added. Jira does not yet support Java 9, much less this JRE 11 you mentioned. However when a major change to a supported platform is added to the product, these details tend to also be included in the release notes for Jira.

I would recommend reviewing our Atlassian Support Offerings for more background on this third question. Atlassian does not provide support for Java itself. This is much in the same way that Atlassian does not provide database administration. Jira still needs a database to operate (and java), but the implementation and support of that database is something we would expect you or your system administrator to handle. We do the best we can to support our products that run on top of these other technologies (databases, java runtime environment, operating system, etc). Obviously Atlassian does not want to put you in the situation of having to run an unsupported or end of life product in order to use our product.

To that end, I have noticed that Atlassian tends to mirror our products end of life with the end of life of these other technologies. For example, in Jira 6.4, the supported platforms listed both Java 7 and Java 8 for Jira. However beginning with Jira 7.0, only Java 8 was supported. I would expect that Atlassian would continue this kind of stepping when it comes to keeping our products in line with the underlying technologies that make them operate.

Vick Khera

Just to add a data point, I have been running Jira and Confluence on OpenJDK for years. Furthermore, I run it on FreeBSD, which hasn't been a supported platform since Jira 4.

The only noticeable issue I have is that issue search links in the body of confluence pages to jira issues twirl and time out, and that only started recently. It used to work until about 1.5 years ago or so (don't recall the versions involved). Curiously, the issue reference links in the confluence page header work just fine.

I would expect it to work since Oracle JDK and Open JDK are built from the same source tree.

Angel Ruiz_m6y0h0

On the other hand, there are critical issues when using Confluence with OpenJDK/JRE

Vick Khera

I guess I've been lucky, then. The only issue I have with it is listed above.

I'm also running Crowd and Fisheye on OpenJDK on FreeBSD, and have zero issues with either of them.

congo bongo

ive been running various jira versions for 4 years on freebsd - not a problem in that, but when i tried combining openJDK with Jira 3 years ago it broke. Tomcat spontanously crashed.. daily.. so i went back to oracleJDK

as i read the JDK licensedeal, it means we only have to pay when/if we need additional support extending to the three years support for the to-be oracle-jdk versions. And i figure most jira installations are upgraded at least once every three years.

Angel Ruiz_m6y0h0

FYI Oracle Java 8 EOL is on January 2019 which is not far off http://www.oracle.com/technetwork/java/eol-135779.html

Jakub Lazinski

On this topic, you might be interested in the latest update regarding plans for supporting OpenJDK 11 across all Atlassian Server & Data Center products -> https://community.atlassian.com/t5/Jira-discussions/Java-11-and-OpenJDK-support-for-Atlassian-Server-amp-Data-Center/m-p/872998#M4575

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