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Asked: 2018-11-07 08:53:42 +0800 CST

How to install JDK 11 GA on Ubuntu 18.04?

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I'm on Ubuntu 18.04 with default-java -> java-1.11.0-openjdk-amd64/. java -version shows:

OpenJDK 64-Bit Server VM (build 10.0.2+13-Ubuntu-1ubuntu0.18.04.3, mixed mode)

I already did an apt upgrade and apt-upgrade, but the java version is still 10.

How can I safely upgrade my Java installation to JDK 11 GA? If I have to add a repository, which one should I use? Do I have to uninstall the existing JDK first?

How can I then make the new Java version the default-java?

java jdk openjdk 18.04

1 Answers

  1. Best Answer

    To add the LinuxUprising Java PPA repository to your software sources and install Oracle Java 11 in Ubuntu 18.04 run the following commands:

    sudo add-apt-repository ppa:linuxuprising/java
sudo apt update
sudo apt install oracle-java11-installer

    The oracle-java11-installer package automatically installs the oracle-java11-set-default package, which sets Oracle Java 11 as default (including setting the JAVA_HOME environment variable, which requires a session restart).

    You don't need to uninstall openjdk-11-jdk if you already have installed it. You can use update-java-alternatives (which is installed when openjdk-11-jdk is installed) to manually choose which Java to use before running an application. 

    $ update-java-alternatives
usage: update-java-alternatives [--jre-headless] [--jre] [--plugin] [-v|--verbose]
           -l|--list [<jname>]
           -s|--set <jname>
           -a|--auto
           -h|-?|--help
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