I got a linux mint pc with openJDK 1.11 pre-installed. I installed the openJDK 1.8. package and set the default java (sudo update-alternatives --config java) to it. All is working fine (java -version outputs the correct java version). Now that I try to use maven, in my attempt to change JAVA_HOME (because it was not pointing to the correct location - this is working now, too), I saw a directory called default-java (/usr/lib/jvm/default-java) which is a symlink to the original 1.11 JDK, even though I am not using it at all.
Can someone tell me what that means, if that is a problem and if I should change it?
Thanks in advance!
The link to default-java is managed by the APT package default-jre-headless.
To update the link, you could remove the package and then reinstall it again
apt remove default-jre-headless
apt install default-jre-headless
Check this answer : https://askubuntu.com/questions/181381/what-package-creates-usr-lib-jvm-default-java