How to Download and Install JDK on Red Hat Linux
If you are a Java developer or a user of Java applications, you might be wondering how to download and install JDK on Red Hat Linux. JDK stands for Java Development Kit, which is a software package that contains the tools and libraries needed to develop and run Java applications. JDK includes JRE (Java Runtime Environment), which is a software package that contains the JVM (Java Virtual Machine) and other components needed to run Java applications.
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One of the options for downloading and installing JDK on Red Hat Linux is to use the Red Hat build of OpenJDK, which is a free and open source implementation of the Java Platform, Standard Edition (Java SE). The Red Hat build of OpenJDK is based on the upstream OpenJDK community-led projects and provides enterprise-level support and security updates for Red Hat Enterprise Linux, Red Hat OpenShift, and Windows platforms. The Red Hat build of OpenJDK also offers long-term support for major versions of OpenJDK, such as 8, 11, and 17.
In this article, we will show you how to download and install JDK on Red Hat Linux using the Red Hat build of OpenJDK. We will also show you how to test your installation and check the version and features of your OpenJDK. By following this guide, you will be able to enjoy the benefits of using OpenJDK on Red Hat Linux, such as cost savings, open source innovation, multiplatform support, frequent releases, and long-term support.
Prerequisites
Before you download and install JDK on Red Hat Linux, you need to make sure that you have enabled the Optional channel on your Red Hat Enterprise Linux system. The Optional channel provides access to additional packages that are not included in the default channels. To enable the Optional channel, you need to run the following commands as root or with sudo privileges:
yum repolist all yum-config-manager --enable rhel-7-server-optional-rpms
You also need to verify that you have Java installed on your system and check its version. To do that, you can run the following command:
java -version
If you have Java installed, you will see an output similar to this:
openjdk version "17.0.2" 2023-01-18 LTS OpenJDK Runtime Environment 21.9 (build 17.0.2+8-LTS) OpenJDK 64-Bit Server VM 21.9 (build 17.0.2+8-LTS, mixed mode, sharing)
If you do not have Java installed or want to use a different version, you can proceed with downloading and installing JDK on Red Hat Linux using one of the methods described below.
How to download and install Red Hat build of OpenJDK
Red Hat build of OpenJDK download options and instructions
Download OpenJDK for Windows and Linux from Red Hat Developer
Red Hat build of OpenJDK container images and migration toolkit
Download OpenJDK 11, 17, or 8 for Red Hat Enterprise Linux (RHEL)
Download OpenJDK source code and documentation from Red Hat
Download OpenJDK portable packages for Linux from Red Hat
Download OpenJDK MSI installer for Windows from Red Hat
Download OpenJDK ZIP archive for Windows from Red Hat
Download OpenJDK TAR.XZ archive for Linux from Red Hat
Download OpenJDK JRE packages for Windows and Linux from Red Hat
Download OpenJDK JDK packages for Windows and Linux from Red Hat
Download OpenJDK with support for Red Hat OpenShift
Download OpenJDK with support for Red Hat Developer Studio
Download OpenJDK with support for Java SE standard edition
Download OpenJDK with support for Java EE enterprise edition
Download OpenJDK with support for Jakarta EE enterprise edition
Download OpenJDK with support for MicroProfile microservices framework
Download OpenJDK with support for Quarkus cloud-native framework
Download OpenJDK with support for Spring Boot framework
Download OpenJDK with support for GraalVM native image compiler
Download OpenJDK with support for Eclipse IDE
Download OpenJDK with support for Visual Studio Code IDE
Download OpenJDK with support for IntelliJ IDEA IDE
Download OpenJDK with support for Apache Maven build tool
Download OpenJDK with support for Apache Tomcat web server
Download OpenJDK with support for WildFly application server
Download OpenJDK with support for JBoss Enterprise Application Platform (EAP)
Download OpenJDK with support for JBoss Web Server (Tomcat)
Download OpenJDK with support for Thorntail microservices runtime
Download OpenJDK with support for Vert.x reactive toolkit
Download OpenJDK with support for Node.js runtime environment
Download OpenJDK with support for Kotlin programming language
Download OpenJDK with support for Scala programming language
Download OpenJDK with support for Groovy programming language
Download OpenJDK with support for Clojure programming language
Download OpenJDK with support for JRuby programming language
Download OpenJDK with support for Jython programming language
Download OpenJDK with support for Nashorn JavaScript engine
Download OpenJDK with support for Graal.js JavaScript engine
How to update and upgrade Red Hat build of OpenJDK
How to uninstall and remove Red Hat build of OpenJDK
How to configure and optimize Red Hat build of OpenJDK
How to troubleshoot and debug Red Hat build of OpenJDK
How to secure and harden Red Hat build of OpenJDK
How to monitor and tune Red Hat build of OpenJDK performance
How to test and benchmark Red Hat build of OpenJDK performance
How to migrate and modernize applications using Red Hat build of OpenJDK
Downloading OpenJDK
There are several ways to download OpenJDK from Red Hat sources. You can choose the one that suits your needs and preferences best. Here are some of the options:
Downloading program.
openjdk 17.0.2 2023-01-18 LTSHello, World!
--full-version
Displays the full version string of OpenJDK in a single line.
openjdk 17.0.2+8-LTS
-XshowSettings:properties
Displays the system and Java properties of OpenJDK.
Property settings:awt.toolkit = sun.awt.X11.XToolkitfile.encoding = UTF-8file.separator = /java.class.path = .java.home = /opt/openjdk/jdk-17java.io.tmpdir = /tmpjava.library.path = /usr/java/packages/lib:/usr/lib64:/lib64:/lib:/usr/libjava.runtime.name = OpenJDK Runtime Environmentjava.runtime.version = 17.0.2+8-LTSjava.specification.name = Java Platform API Specificationjava.specification.vendor = Oracle Corporationjava.specification.version = 17java.vendor = Red Hat, Inc.java.vendor.url = = = 17.0.2java.version.date = 2023-01-18java.vm.info = mixed mode, sharingjava.vm.name = OpenJDK 64-Bit Server VMjava.vm.specification.name = Java Virtual Machine Specificationjava.vm.specification.vendor = Oracle Corporationjava.vm.specification.version = 17java.vm.vendor = Red Hat, Inc.java.vm.version = 21.9line.separator = \nos.arch = amd64os.name = Linuxos.version = 4.18.0-348.el8.x86_64path.separator = :sun.boot.library.path = /opt/openjdk/jdk-17/libsun.java.command = HelloWorldsun.java.launcher = SUN_STANDARDsun.jnu.encoding = UTF-8sun.management.compiler = HotSpot 64-Bit Tiered Compilers
You can use these options to check the OpenJDK version and features and compare them with other Java implementations.
Conclusion
In this article, we have shown you how to download and install JDK on Red Hat Linux using the Red Hat build of OpenJDK. We have also shown you how to test your installation and check the version and features of your OpenJDK. By following this guide, you have learned how to use OpenJDK on Red Hat Linux and enjoy its benefits, such as cost savings, open source innovation, multiplatform support, frequent releases, and long-term support.
If you want to learn more about OpenJDK and how to use it for your Java development and deployment needs, you can visit the following resources:
FAQs
What is the difference between JDK and JRE?
JDK stands for Java Development Kit, which is a software package that contains the tools and libraries needed to develop and run Java applications. JDK includes JRE (Java Runtime Environment), which is a software package that contains the JVM (Java Virtual Machine) and other components needed to run Java applications. JRE is a subset of JDK and can be used by end-users who only need to run Java applications without developing them.
What is the difference between Oracle JDK and OpenJDK?
Oracle JDK and OpenJDK are two implementations of the Java Platform, Standard Edition (Java SE). Oracle JDK is a proprietary product developed and maintained by Oracle Corporation, which requires a commercial license for production use. OpenJDK is a free and open source product developed and maintained by the OpenJDK community, which does not require a license for any use. Both Oracle JDK and OpenJDK are based on the same source code, but they may have some differences in terms of features, performance, security, and support.
How can I update OpenJDK on Red Hat Linux?
You can update OpenJDK on Red Hat Linux using the same method that you used to install it. For example, if you installed OpenJDK using the YUM installer, you can run the yum update command to update it to the latest version. For example: yum update /path/to/openjdk-17.0.2-0.el8_5.x86_64.rpm
This command will update the OpenJDK package and its dependencies on your system. You can verify the update by running the java -version command again and checking the output. How can I uninstall OpenJDK on Red Hat Linux?
You can uninstall OpenJDK on Red Hat Linux using the same method that you used to install it. For example, if you installed OpenJDK using the YUM installer, you can run the yum remove command to uninstall it from your system. For example:
yum remove openjdk-17
This command will uninstall the OpenJDK package and its dependencies from your system. You can verify the uninstallation by running the java -version command again and checking the output.
How can I get support for OpenJDK on Red Hat Linux?
If you need support for OpenJDK on Red Hat Linux, you can contact Red Hat Customer Service or Red Hat Technical Support, depending on your subscription level and service level agreement. You can also access the Red Hat Customer Portal, which provides various resources and tools for troubleshooting and resolving issues with OpenJDK and other Red Hat products. You can also join the Red Hat Developer Program, which provides access to forums, blogs, webinars, events, and other resources for developers who use Red Hat products and technologies. 44f88ac181
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