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Download Liberty Websphere: The Cloud-Native Runtime for Java Applications

Download Liberty Websphere: A Guide to the Lightweight Java Runtime

If you are looking for a modern and efficient way to run your Java applications, you might want to consider downloading Liberty Websphere. Liberty Websphere is a lightweight Java runtime that is ideal for building microservices, modern monolithic applications, and anything in between. It is built on the open source Open Liberty runtime and is compatible with MicroProfile and Jakarta EE. In this article, we will explain what Liberty Websphere is, why you should use it, how to download it, how to develop and deploy applications with it, and how to migrate your existing applications to it.

What is Liberty Websphere and why should you use it?

Liberty Websphere is a next-generation application runtime that accelerates the delivery of cloud-native applications, allowing your team to rapidly deliver differentiating innovation. Whether you're running microservices in a serverless environment or a traditional always-on application, Liberty Websphere requires less infrastructure, saving costs, and providing the flexibility your organization needs to deploy on any cloud in a trusted, secure, and open environment. Liberty Websphere empowers your development and platform engineering teams to continuously deliver code that meets and exceeds your customers' expectations. Here are some of the benefits of using Liberty Websphere:

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Liberty Websphere is a flexible and container-ready runtime for Java applications

Liberty Websphere is designed to run in any environment, from bare metal to virtual machines (VMs) to containers. It can run on any operating system that supports Java, including Windows, Linux, macOS, IBM i, and IBM z/OS. It can also run on any cloud platform that supports containers, such as IBM Cloud, Amazon Web Services (AWS), Microsoft Azure, Google Cloud Platform (GCP), Red Hat OpenShift, and Kubernetes. Liberty Websphere is optimized for containerized deployments, continually auto-tuning its performance to the environment.

Liberty Websphere supports open standards and modern development practices

Liberty Websphere is built on the open source Open Liberty runtime, which reflects IBM's commitment to open standards and open community innovation and testing. Open Liberty is compatible with MicroProfile and Jakarta EE, which are open specifications for developing cloud-native Java microservices and enterprise applications. Open Liberty also supports Java EE technologies for backward compatibility. With Liberty Websphere, you can avoid vendor lock-in and leverage the latest innovations from the open source community.

Liberty Websphere offers high performance, scalability, and security

Liberty Websphere delivers high performance with a smaller disk and memory footprint and higher throughput than traditional Java runtimes. It also scales dynamically according to the workload demand, ensuring optimal resource utilization. Additionally, Liberty Websphere provides comprehensive security features, such as encryption, authentication, authorization, auditing, single sign-on (SSO), identity federation, certificate management, and more.

How to download Liberty Websphere and get started?

If you are interested in downloading Liberty Websphere and trying it out for yourself, you have two options: you can download the IBM edition or the Open Liberty edition. The IBM edition is a commercial offering that includes support and additional features, such as IBM WebSphere Application Server Migration Toolkit, IBM WebSphere Application Server Network Deployment, and IBM WebSphere Application Server Liberty Core. The Open Liberty edition is a free and open source offering that includes the core features of Liberty Websphere. Here are the steps to download Liberty Websphere and get started:

Choose the right edition of Liberty Websphere for your needs

The first step is to decide which edition of Liberty Websphere suits your needs. If you are looking for a fully supported and feature-rich runtime, you might want to choose the IBM edition. If you are looking for a simple and lightweight runtime, you might want to choose the Open Liberty edition. You can compare the features and benefits of each edition on the . You can also try both editions for free for 90 days.

Download Liberty Websphere from IBM or Open Liberty websites

The next step is to download Liberty Websphere from the source of your choice. If you want to download the IBM edition, you can go to the and choose the package that matches your platform and Java version. You do not need any registration to download the Open Liberty edition.

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Install and configure Liberty Websphere on your preferred platform

The final step is to install and configure Liberty Websphere on your preferred platform. The installation process is simple and straightforward, as you only need to extract the downloaded package to a directory of your choice. You can then use the command-line interface (CLI) or the graphical user interface (GUI) to configure and manage your runtime. You can find detailed instructions on how to install and configure Liberty Websphere on different platforms on the .

How to develop and deploy applications with Liberty Websphere?

Once you have downloaded and installed Liberty Websphere, you are ready to develop and deploy applications with it. Liberty Websphere supports a variety of development tools and frameworks, such as Eclipse, Visual Studio Code, Maven, Gradle, Spring Boot, Quarkus, and more. You can use these tools to create and manage projects that run on Liberty Websphere. Here are some of the key steps to develop and deploy applications with Liberty Websphere:

Use Liberty Tools to create and manage projects in your IDE

Liberty Tools are plugins that integrate Liberty Websphere with your IDE of choice. They allow you to create, import, export, run, debug, test, and deploy projects that run on Liberty Websphere. They also provide features such as code completion, syntax highlighting, validation, refactoring, and more. You can find and install Liberty Tools for Eclipse, Visual Studio Code, or IntelliJ IDEA from their respective marketplaces or websites.

Use dev mode to enable fast iterative development with Liberty Websphere

Dev mode is a feature that allows you to develop applications with Liberty Websphere in a fast and convenient way. Dev mode automatically detects changes in your source code or configuration files and updates your application without requiring a restart or redeploy. Dev mode also enables hot testing, which runs unit tests or integration tests whenever you make a change. Dev mode also provides interactive debugging, which allows you to set breakpoints, inspect variables, modify values, and more. You can start dev mode by running the command `mvn liberty:dev` or `gradle libertyDev` in your project directory.

Use features to customize the runtime capabilities of Liberty Websphere

Features are modular components that provide specific functionality for your application runtime. For example, features can enable support for web applications, RESTful services, database access, security mechanisms, messaging systems, batch processing, health checks, metrics, tracing, fault tolerance, and more. You can use features to customize the runtime capabilities of Liberty Websphere according to your application requirements. You can add or remove features by editing the server.xml file in your project directory. You can also use the to browse and select the features that you need.

How to migrate your existing applications to Liberty Websphe


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