If you already have installed the JDK, verify your JAVA_HOME environment variable is correctly set

Question

I face an issue with my application, when compiling it output following message : [ERROR] If you already have installed the JDK, verify your JAVA_HOME environment variable is correctly set.

When i nano ~/.profile i have this line :

export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk-11.0.1.jdk/Contents/Home

and source $JAVA_HOME outputs :

-bash: source: /Library/Java/JavaVirtualMachines/jdk-11.0.1.jdk/Contents/Home: is a directory

Someone could helps me how to correctly put java jdk on environnement variable ?

My system : MacOs High Sierra version 10.13.6

Answer 1

Step 1: Modify the JAVA_HOME to stop at the "jdk" root. And add the JAVA_HOME/bin to your PATH. Like,

export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk-11.0.1.jdk
export PATH=$PATH:$JAVA_HOME/bin

Step 2: Source the correct file. After making the two changes above to your ~/.profile , you do not

source $JAVA_HOME

Instead you

source ~/.profile

Since you're still struggling, I would (as I said in my initial comment), install sdkman!

curl -s "https://get.sdkman.io" | bash

Then you can

sdk use java 11.0.1-open

or

sdk use java 11.0.1-zulu

or

sdk use 8.0.192-zulu

or etc...

sdk ls java

to see available versions. And, sdk ls will show you a plethora of available java based tools you can install. It's wonderful. It's cross platform. It's free.