Chapter 2. Installing Prerequisite Components

2.1. Install Open JDK on Red Hat Enterprise Linux

  1. Install the OpenJDK package:
    yum install java-[VERSION]-openjdk-devel
  2. To install it to alternatives, run these commands:
    sudo alternatives --install /usr/bin/java java usr/lib/jvm/java-[VERSION]-openjdk/bin/java 1000
    sudo alternatives --install /usr/bin/javac javac /usr/lib/jvm/java-[VERSION]-openjdk/bin/javac 1000
  3. As root, run the alternatives command for java:
    /usr/sbin/alternatives --config java
  4. Select /usr/lib/jvm/jre-[VERSION]-openjdk/bin/java.
  5. Then do the same for javac:
    /usr/sbin/alternatives --config javac
  6. Select /usr/lib/jvm/java-[VERSION]-openjdk/bin/javac.