Set default Java Version

If you have multiple Java-Versions installed you most likely want to set a default one.

You can use the alternatives command for that.

[tux@server]$ alternatives --config java

There are 2 programs which provide 'java'.

  Selection    Command
 + 1           java-1.7.0-openjdk.x86_64 (/usr/lib/jvm/java-1.7.0-openjdk-
*  2           java-1.8.0-openjdk.x86_64 (/usr/lib/jvm/java-1.8.0-openjdk-

Just enter the number of your desired default java-version and the OS will set the links accordingly.

You can now link the java-home to one of the links under /etc/alternatives. The Links in this directory will be automatically updated if you install updates.

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Jannik Rehkemper

I'm an professional Linux Administrator and Hobby Programmer. My training as an IT-Professional started in 2019 and ended in 2022. Since 2023 I'm working as an Linux Administrator.