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Chapter 2. Installing OpenJDK
The following section describes how to install OpenJDK on Microsoft Windows and Red Hat Enterprise Linux (RHEL).
2.1. Installing OpenJDK 1.8.0 on Windows
The following section describes how to install OpenJDK 1.8.0 on Windows using the MSI-based installer.
Procedure
- Download the MSI-based installer from http://developers.redhat.com/products/openjdk/overview/.
- Run the installer and follow the on-screen installation instructions.
- Configure CodeReady Studio to use OpenJDK by following the instructions at Working with JREs.
2.2. Installing OpenJDK on RHEL
The following section describes how to install OpenJDK 1.8.0 and OpenJDK 11 on RHEL.
Prerequisites
-
Rootaccess. - Registered system with attached subscriptions. See Registering the system and managing subscriptions for more details.
2.2.1. Installing OpenJDK 1.8.0 on RHEL
The following section describes how to install OpenJDK 1.8.0 on RHEL.
Procedure
To install OpenJDK RPMs, use:
# yum install java-1.8.0-openjdk-devel
Optionally, you can install the java-1.8.0-openjdk-src and the java-1.8.0-openjdk-demo packages. The java-1.8.0-openjdk-src package contains the complete OpenJDK 8 class library source code you can use with IDE indexers and debuggers. The java-1.8.0-openjdk-demo package contains Java runtimes for OpenJDK (demos and examples).
To install java-1.8.0-openjdk-demo and java-1.8.0-openjdk-src, use:
# yum install java-1.8.0-openjdk-src java-1.8.0-openjdk-demo
2.2.2. Installing OpenJDK 11 on RHEL
The following section describes how to install OpenJDK 11 on RHEL.
Procedure
To install OpenJDK RPMs, use:
# yum install java-11-openjdk-devel
Optionally, you can install the java-11-openjdk-src and the java-11-openjdk-demo packages. The java-11-openjdk-src package contains the complete OpenJDK 8 class library source code you can use with IDE indexers and debuggers. The java-11-openjdk-demo package contains Java runtimes for OpenJDK (demos and examples).
To install java-11-openjdk-demo and java-11-openjdk-src, use:
# yum install java-11-openjdk-src java-11-openjdk-demo
2.2.3. Additional resources
- For more information on how to install, run, and switch between two parallel installed major OpenJDK versions on RHEL8, see https://developers.redhat.com/blog/2018/12/10/install-java-rhel8/.
