Install JAVA

It is recommended to install the latest JAVA openjdk release available

Linux CentOS/RedHat

Use the existing package installer (apt or yum for example) to install or upgrade latest GA version of JAVA OpenJDK

Example on CentOS:

yum install java-latest-openjdk-headless.x86_64 # Installs the latest OpenJDK binaries
alternatives --config java # In case of upgrade: Switches the links to point to the new version
java -version # Check you run the latest version

Or download the Linux/x64 archive from https://jdk.java.net/ and decompress it in your usual Java install path and update /usr/bin/java link

Refer to the online documentation specific to your Linux distribution

Linux Open SUSE Leap 15.2

Run the following commands to install JAVA openjdk 15

zypper up
zypper ar http://download.opensuse.org/repositories/Java:/Factory/openSUSE_Leap_15.2/ java
zypper mr -p 70 java
zypper refresh
zypper in java-15-openjdk [To try first in case it is already available]
java --version

Manual install

Note: In the below example, jdk install folder is in /usr/lib/jvm/

wget https://download.java.net/java/GA/jdk20.0.1/b4887098932d415489976708ad6d1a4b/9/GPL/openjdk-20.0.1_linux-x64_bin.tar.gz
tar zxvf openjdk-20.0.1_linux-x64_bin.tar.gz -C /usr/lib/jvm/
alternatives --install /usr/bin/java java /usr/lib/jvm/jdk-20.0.1/bin/java 99
alternatives --config java -> select new version

If a JAVA version is already installed on your system before the installation, use alternatives command to change the java version used by your system.

alternatives --config java # In case of upgrade: Switches the links to point to the new version
# logout and login again to have the environment variables defined.