will AEM 6.5 run on openJDK 11 on ubuntu, or will it only work with oracle java?

[nutmix]

Is anyone out there running 6.5 on openJDK, for dev and test envs at least?

Installing the supported oracle java on headerless ubuntu is difficult, with most how-tos using using untrusted unofficial PPA scripts.

Installing openjdk on the other hand is a online line command.

Will AEM 6.5 run on openJDK for a dev (non public facing) on Ubuntu 20?

If so, is the JRE sufficient?   e.g. "sudo apt install openjdk-11-jre-headless"

[SureshDhulipudi · Accepted solution]

https://experienceleague.adobe.com/docs/experience-manager-65/deploying/introduction/technical-requi...

check server operating system section, it will support - Linux, based on Debian distribution incl. Ubuntu

Supported Platforms: Java Virtual Machines

Oracle Java SE 11 JDK - 64bit

Deploying Guide:

https://experienceleague.adobe.com/docs/experience-manager-65/deploying/deploying/deploy.html?lang=e...

[nutmix]

Thanks for the reply. Yes, I know it says only oracle java is supported, but my question was if it also works (not supported) on openjdk?

[SureshDhulipudi]

AEM will not work on OpenJDK

[Jörg_Hoh]

To put it in other words: It is not supported on any other java than Oracle Java. But you might be able to develop locally on it using OpenJDK. (I am not aware of any incompatibilities which are relevant for AEM custom application development.)

[Aditivohra]

so my next question is can AEM 6.5 support any other open JDK if not oracle- like IBM JDK or any other open source java?

[Jörg_Hoh]

---

@Aditivohra wrote:

so my next question is can AEM 6.5 support any other open JDK if not oracle- like IBM JDK or any other open source java?

---

The AEM 6.5 documentation mentions in the "Technical documentation" [1] that only the following Java versions are fully supported:

• Azul Zulu OpenJDK 8 and 11 (64bit), starting with AEM 6.5 SP9
• Oracle Java SE JDK 8 and 11 (64 bit)

Other JVMs are currently not supported.

[1] https://experienceleague.adobe.com/docs/experience-manager-65/deploying/introduction/technical-requi...

[Aditivohra]

Thanks Jorg.

I am actually looking to upgrade my AEM 6.2 to 6.5 and want a free Java to be installed as we want to move out of Oracle Java.

Can you guide me how 

• Azul Zulu OpenJDK 8 and 11 (64bit), starting with AEM 6.5 SP9 will be different from oracle. 

Also any known issues we should keep in mind while upgrading?

[Jörg_Hoh]

Hi,

not, on an application level there shouldn't be any changes required. I think that on a product level some validations were required and IIRC some Oracle-isms had to be changed

Jörg