IntelliJ IDEA - Maven Can't Find JAVA_HOME After Java 11 Install

Question

I'm running IntelliJ IDEA on Ubuntu 18.04. I've just installed Java 11 and have updated my .bashsrc file to set JAVA_HOME to the new JDK. In the terminal I can run mvn clean install and it will build my d fine. But in the IntelliJ terminal window, I get the following error when running a mvn clean install

The JAVA_HOME environment variable is not defined correctly
This environment variable is needed to run this program
NB: JAVA_HOME should point to a JDK not a JRE

In the IntelliJ terminal window this is the result of echo $JAVA_HOME

/usr/lib/jvm/java-11

Similarly, this is the result of echo $PATH

/home/myusername/.local/bin:/home/myusername/.local/bin:
/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:
/usr/local/games:/snap/bin:/usr/lib/jvm/java-11/bin:
/usr/lib/jvm/java-11/db/bin:/usr/lib/jvm/java-11/bin:/usr/lib/jvm/java-11/db/bin

What do I need to do to have IntelliJ's version of maven recognize JAVA_HOME ? I've already set my Project SDK to JDK11.

Answer 1

I messed around with this for a couple of hours yesterday but was unable to resolve the issue. In the end, I completely uninstalled both Java and Maven and then reinstalled JDK8 and the latest Maven. This appeared to fix the problem in that IntelliJ's command line was able to locate JAVA_HOME.

Here are the two resources I used to uninstall all Java and then reinstall JDK8, for anyone who is interested.

How to completely uninstall Java

How to install JDK on Ubuntu

I've yet to reinstall JDK11.

Answer 2

I had almost the same issue, except my Java version was shown as 1.8 after typing mvn -v in IDEA, but JAVA_HOME value was empty while it displayed correctly in Linux terminal. I`ve typed the following command in IDEA terminal

export JAVA_HOME=*path to Java 11*

This solved my problem. I think you could try the same without reinstall both Java and Maven.