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WebSphere Liberty A guide to download and configure the versatile application server

How to Download WebSphere Liberty

WebSphere Liberty is a fast, lightweight, and dynamic application server that enables you to build, run, and deploy web applications and microservices with ease. In this article, you will learn what WebSphere Liberty is, what is new in WebSphere Liberty, and how to download it from IBM Support or Fix Central.

What is WebSphere Liberty?

A brief introduction to WebSphere Liberty and its features

WebSphere Liberty is a Java application server that is based on the open source project Open Liberty. It supports the latest standards and technologies, such as Java SE, Jakarta EE, MicroProfile, and Spring Boot. It also provides a modular and flexible architecture that allows you to choose only the features that you need for your application.

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Some of the key features of WebSphere Liberty are:

  • It is fast to start up and has a low memory footprint, which makes it ideal for cloud-native development and deployment.

  • It is dynamic and adaptable, which means that you can add or remove features without restarting the server.

  • It is simple and easy to use, which means that you can configure and manage your server with minimal XML or through a web-based Admin Center.

  • It is secure and reliable, which means that you can protect your application with built-in security features and monitor its performance with diagnostic tools.

The benefits of using WebSphere Liberty for web applications

WebSphere Liberty offers many benefits for web application developers and operators, such as:

  • It enables you to develop and test your application locally with a developer-friendly environment and tools.

  • It allows you to deploy your application to any cloud platform or container environment with ease and flexibility.

  • It helps you to optimize your application performance and resource utilization with intelligent scaling and load balancing.

  • It supports continuous delivery and integration with DevOps tools and practices.

What is new in WebSphere Liberty

The latest enhancements and bug fixes in WebSphere Liberty

WebSphere Liberty is the latest fix pack release of WebSphere Liberty that introduces key enhancements and bug fixes. Some of the notable changes in this release are:

  • The template used to build application container images was updated in version

  • The development team made several improvements in the areas of security, logging, configuration, messaging, database access, web services, batch processing, and more.

The support for Java SE 20, Jakarta EE 10, and MicroProfile 6.0

WebSphere Liberty also adds support for some of the latest versions of Java SE, Jakarta EE, and MicroProfile[^2^ The support for Java SE 20, Jakarta EE 10, and MicroProfile 6.0

WebSphere Liberty also adds support for some of the latest versions of Java SE, Jakarta EE, and MicroProfile. These versions introduce new features and enhancements that can improve the development and performance of web applications and microservices.

Java SE 20 is a feature release of the Java SE platform that contains new features and enhancements in many functional areas. Some of the notable features in Java SE 20 are:

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WebSphere Liberty 22

  • Record patterns and pattern matching for switch, which enable concise and expressive data modeling and control flow.

  • Scoped values, which provide a way to associate values with threads without using thread locals.

  • Virtual threads, which enable lightweight concurrency with a simpler programming model.

  • Structured concurrency, which ensures that concurrent tasks are properly nested and terminated.

Jakarta EE 10 is the latest release of Jakarta EE that introduces new features for building modernized, simplified, and lightweight cloud native Java applications. Some of the key features in Jakarta EE 10 are:

  • Support for multipart media type in REST services, which enables sending and receiving multiple parts of data in a single request or response.

  • New functions in Jakarta Persistence queries, such as UUID as a basic type and extensions to the query language and API.

  • Multipart/Form-Data support in Jakarta RESTful Web Services, which allows sending form data with files and other types of data.

  • Jakarta EE Core Profile, which defines a base profile to deliver the components used by MicroProfile as a single, complete package.

MicroProfile 6.0 is the latest version of MicroProfile that adopts Jakarta EE 10 Core Profile and delivers updates and improvements in several specifications. Some of the highlights in MicroProfile 6.0 are:

  • MicroProfile Telemetry 1.0, which replaces MicroProfile OpenTracing and provides a standard way to trace requests across microservices using OpenTelemetry.

  • MicroProfile OpenAPI 3.1, which aligns with OpenAPI Specification 3.1.0 and adds support for JSON Schema draft-2020-12.

  • MicroProfile Metrics 5.0, which aligns with Jakarta RESTful Web Services 3.1 and adds support for metric units.

  • MicroProfile JWT Authentication 2.1, which aligns with Jakarta RESTful Web Services 3.1 and adds support for OpenID Connect Discovery.

The new option to set a timeout for the server stop command

WebSphere Liberty also introduces a new option to set a timeout for the server stop command. This option allows you to specify how long the server should wait for the application to stop gracefully before forcing it to stop. This can help you to avoid hanging or slow server stops, especially when dealing with complex or resource-intensive applications.

To use this option, you need to add the --timeout flag to the server stop command and specify the timeout value in seconds. For example, to stop the server with a timeout of 10 seconds, you can use the following command:

server stop --timeout=10

If the application does not stop within the specified timeout, the server will force it to stop and log a warning message. You can also use the --force flag to skip the graceful stop and force the application to stop immediately.

The ability to test server connections with the Admin Center Server Config tool

WebSphere Liberty also adds a new feature to test server connections with the Admin Center Server Config tool. This feature allows you to verify that your server can connect to external resources, such as databases, messaging providers, or LDAP servers, using the configuration elements that you have defined in your server.xml file.

To use this feature, you need to access the Admin Center from your browser and navigate to the Server Config tool. Then, you need to select the connection element that you want to test from the left panel and click on the Test Connection button on the right panel. The tool will then attempt to establish a connection using the specified configuration and display the result in a pop-up window.

If the connection is successful, you will see a green check mark and a message indicating that the connection was established. If the connection fails, you will see a red cross mark and a message indicating the reason for the failure. You can then use this information to troubleshoot and fix your connection issues.

How to download WebSphere Liberty

The prerequisites for downloading WebSphere Liberty

Before you can download WebSphere Liberty, you need to make sure that you have met the following prerequisites:

  • You have an IBM ID and password that you can use to access IBM Support or Fix Central.

  • You have a valid license for WebSphere Liberty that entitles you to download and use the latest fix pack release.

  • You have installed Java SE 20 or later on your system, as WebSphere Liberty requires Java SE 20 or later to run.

The different packages and formats available for WebSphere Liberty

WebSphere Liberty is available in different packages and


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