top of page

moderne Spiritualität

Öffentlich·5 Mitglieder
Charles Morris
Charles Morris

Get Started with OpenJDK on Red Hat OpenShift - Build and Run Java Applications in the Cloud


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.


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.




download jdk red hat



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.


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.


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


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 depen


Info

Willkommen in der Gruppe! Hier können sich Mitglieder austau...

Mitglieder

bottom of page