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Java
Develop modern applications with the open Java ecosystem.
The Java programming language is a high-level, object-oriented language. It is rapidly evolving across several fronts to simplify and accelerate development of modern applications.
19 September 2025
Open Project
OpenJ9
Eclipse OpenJ9: A Java Virtual Machine for OpenJDK that's optimized for small footprint, fast start-up, and high throughput. Builds on Eclipse OMR (https://github.com/eclipse/omr) and combines with the Extensions for OpenJDK for OpenJ9 repo.
19 September 2025
Article
Effective cloud-native Java app development with Open Liberty in IntelliJ IDEA
Use Liberty Tools for IntelliJ IDEA to enable rapid, easy, and efficient development of cloud-native Java applications with Open Liberty and WebSphere Liberty.
19 September 2025
Article
Effective cloud-native Java app development with Open Liberty in the Eclipse IDE
Use Liberty Tools for Eclipse to enable fast, easy, and efficient development of cloud native Java applications with WebSphere Liberty and Open Liberty
19 September 2025
Article
Effective cloud native development with Open Liberty in Visual Studio Code
Shorter summary of content
08 September 2025
Article
Best practices for using the Java Native Interface
Understand the top 10 Java Native Interface (JNI) programming pitfalls and the best practices for avoiding them.
19 August 2025
Learning Path
Get started with Java
Get up to speed with Java with this learning path, which consists of step-by-step tutorials that explain the process of setting up and using Java.
19 August 2025
Tutorial
Writing good Java code
Learn best coding practices that can help you write cleaner, more maintainable Java code.
