Jira and OpenJDK

Question

I've seen conflicting web pages on whether or not OpenJDK[7,8] is currently supported. Could someone please clarify whether or not it is?

More specifically, I'm trying to get a server started on a FreeBSD11 server (in a jail, if that matters) and I'm getting stopped at the error of:

Wrong JVM version! You are running with .. but JIRA requires at least 1.8 to run.

PLEASE NOTE that the check-java.sh script wasn't able to identify the version, causing the startup script to halt.

However, I *do* have openjdk installed:

openjdk version "1.8.0_121"
OpenJDK Runtime Environment (build 1.8.0_121-b13)
OpenJDK 64-Bit Server VM (build 25.121-b13, mixed mode)

So I wonder if I'm really stuck here, or if there's a way for me to get around this error.

Sam Hall_h1otcf · Answer

Do the Jira 7.13.x release notes help?

https://confluence.atlassian.com/jirasoftware/jira-software-7-13-x-release-notes-957981568.html#JiraSoftware7.13.xreleasenotes-openjdk

Ron Chan · Answer

Hello Nick,

Has that fact changed since you wrote that? Our firm is on the path towards OpenJDK and I have not come across any definitive news of Atlassian support for that. I trust your insight so I am asking you first.

Regards,
Ron

argreen3 · Answer

The problem is that openJDK does not print 'java version' but 'openJDK version' and the provided script does not grep for that. I assume openJDK is compatible? After I fixed the issue it seemed to work just fine.

The below is some scratch code (with some diagnostic lines left in, sorry) that fixes the issue on my machine -all I've done is truncate the search string, but I'm sure you can produce a neater and safer fix - its just to show the priniple:

#!/bin/sh

_EXPECTED_JAVA_VERSION="8"

#
# check for correct java version by parsing out put of java -version
# we expect first line to be in format 'java version "1.8.0_40"' and assert that minor version number will be 8 or higher
#
echo $_RUNJAVA
set -x
"$_RUNJAVA" -version
set +x

"$_RUNJAVA" -version 2>&1 | grep "version" | (
IFS=. read ignore1 version ignore2
if [ ! ${version:-0} -ge "$_EXPECTED_JAVA_VERSION" ]
then
echo "*************************************************************************************************************************************"
echo "********** Wrong JVM version! You are running with "$ignore1"."$version"."$ignore2" but JIRA requires at least 1.8 to run. **********"
echo "*************************************************************************************************************************************"
exit 1
fi
)

.... and so on...