Install Java 8

Switch to root or execute the below steps under a user with sudo privileges.


  • Ubuntu, Debian
apt-get install openjdk-8-jdk
  • Red Hat Enterprise Linux, SLES, CentOS, Oracle Linux
yum install java-1.8.0-openjdk-devel

In case the package is not available, install OpenJDK 8 by downloading the binary, configuring an alternative package repository, or using an alternative package manager such as SDKMAN:

# non-root privileges required
curl -s "" | bash
sdk list java # list all available packages
sdk install java 8.0.282-librca # Choose one of the OpenJDK 8 vendors
sdk use java 8.0.282-librca

Update Alternatives for Java Executables

Review available Java installations and select Java 8 as the default option. Applies only to Java versions installed using the system package manager (aptor yum).

  • Ubuntu, Debian
update-alternatives --config java
update-alternatives --config javac
  • Red Hat Enterprise Linux, SLES, CentOS, Oracle Linux
alternatives --config java
alternatives --config javac

Configure Environment

Add JAVA_HOME path to the user environment in .bashrc.

jp=`dirname "$(dirname "$(readlink -f "$(which javac || which java)")")"`; \
  sed -i "s,^export JAVA_HOME=.*,export JAVA_HOME=$jp,g" ~/.bashrc ; \
  echo $jp

Verify Installation

Verify that Java 8 is set as the default executable and compiler.

java -version
javac -version