According to the Supported platforms document, Jira Server 8.5 only support AdoptOpenJDK up to version 11.0.2.
- Supported platforms
- We support AdoptOpenJDK up to version 11.0.2.
However, JDK 11.0.2 caused below bug.
JRASERVER-70780: Webhooks intermittently stop working with Java 11
This bug fixed JDK 11.0.8 or JDK 13.
Since Jira Software 8.5 is long term support release, that would be nice to support up to 11.0.8.