I followed this
https://confluence.atlassian.com/jirakb/change-the-java-version-used-by-jira-server-765594330.html
I changed JRE_HOME to /usr/bin/java
This is because I want to use the java I instlalled on my RHEL server to use OpenJDK 11
This is the error I got:
29-May-2021 11:37:29.086 WARNING [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [ROOT] appears to have started a thread named [plugin-transaction-0] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
sun.misc.Unsafe.park(Native Method)
java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)
/opt/atlassian/jira/bin/catalina.sh: line 516: /usr/bin/java/bin/java: Not a directory
/opt/atlassian/jira/bin/catalina.sh: line 516: /usr/bin/java/bin/java: Not a directory
/opt/atlassian/jira/bin/catalina.sh: line 516: /usr/bin/bin/java: No such file or directory
I am using the latest jira software 8.17
As seen here https://community.atlassian.com/t5/Agile-articles/Java-11-OpenJDK-support-update-for-Server-and-Data-Center/ba-p/967836#M392
it says openJDK 11 is supported.