Can Java 8 be uninstalled from the server?

[Deleted user]

Our Jira application v8.8.0 is using OpenJDK Runtime Enviroment Java Ver 1.8.0_202 and we wanted to know if it was safe to remove Java 8 from the server.

[Nic Brough -Adaptavist- · Accepted solution]

Yes, probably.

You need to check exactly what JVM your Jira is relying on, as you can't remove that if you want Jira to run.  But in most modern installs, Atlassian stuff runs on a local JVM, not the system one, so removing a system installation of Java from a box will not affect it.  You actually have to do a lot of fiddling to make an Atlassian system run on the system Java, and it's not recommended!

[Deleted user]

Thanks for the info, I believe that is what I was searching for.

[Carlos Garcia Navarro]

Hi @[deleted] ,

According to this document, Java 1.8 is the supported version of Java for Jira Server: 

https://confluence.atlassian.com/adminjiraserver073/supported-platforms-861253018.html

Also,  as indicated here, "Atlassian recommends upgrading to Java 8 for a variety of performance related symptoms, as described above. We have seen significant performance improvements to large scale instances by upgrading to Java 8, including cases where the performance was a lot worse with JIRA 6.3 and above than earlier versions of JIRA when using Java 6/7.

Due to the JVM bug described in the JIRA Crashes due to Segmentation Fault in Java 8 JVM document, we recommend upgrading Java to 1.8.0_40 or later."

[Deleted user]

Well the issue is our security team wants us to remove Java 8xxx from our servers and replace with a version on OpenJDK, I can see under our system info that the installed app is using OpenJDK, I just wanted to make sure that removing java is not going to effect the performance  on the app server

[Deleted user]

Thank you for the response