Best Java IDE Plugins Released in 2025
1 ) Eclipse IDE 2025 06 Release and Plugin Improvements
The Eclipse IDE is the leading open platform for professional developers and has released its 2025 06 version.
Supports the latest Java 24 with tooling enhancements that improve code folding, stack navigation, and new Java language features such as pattern matching for primitives, flexible constructors, and simplified source files.
Offers proven extensibility with a large ecosystem of plugins to extend functionality seamlessly.
Platform improvements include scalable SVG icons, automatic monitor specific UI scaling, and customizable breakpoint labels.
Plugin development tooling has been made easier through features like the new OSGI resolution view, dependency search filters, and split package detection.
The Eclipse IDE remains free and open source under the Eclipse Public License 2.0.
Community driven development, with strong support from companies like Renesas, Sigasi, and VMware who contribute to and rely on the Eclipse ecosystem.
The Eclipse Installer now simplifies the Eclipse setup process with a straightforward installation experience for macOS, Windows, and Linux with included JREs.
2 ) IntelliJ IDEA 2025.2 Major Enhancements
IntelliJ IDEA 2025.2 introduces powerful updates aimed at boosting developer productivity with support for the newest technologies including Java 25, Maven 4, and JSpecify.
Offers major improvements tailored for Spring developers such as a Spring Debugger and Spring Modulith support.
Enhanced AI assisted workflows provide smarter, context aware coding help for database operations and improved free AI assistance through the AI Assistant Junie.
IntelliJ IDEA integrates AI capabilities deeply, even allowing it to serve as a server (MCP server) for third party AI agents to augment coding assistance.
The update brings a redesigned “What’s New” experience to highlight new features more effectively.
3 ) Kotlin Plugin Support Across IDEs
JetBrains continues to provide first class official Kotlin plugin support bundled with IntelliJ IDEA and Android Studio releases.
Kotlin plugin updates automatically suggest the latest language versions for these IDEs when available.
Eclipse supports Kotlin via a community maintained plugin originally developed by JetBrains, which can be installed from the Eclipse Marketplace. Contributions are managed via GitHub for this plugin.
Other IDEs like Visual Studio Code and Atom have community supported Kotlin plugins, though without official JetBrains backing.
For text editors without plugin support, Kotlin development relies on command line tools available via GitHub or package managers like Homebrew and SDKMAN!
4 ) GitHub Copilot Plugin for Eclipse
GitHub Copilot is now available as a plugin directly installable in Eclipse through the Eclipse Marketplace client.
Offers AI driven code completion and assistance integrated natively into the Eclipse development environment for Java and other languages.
Supports multiple recent versions of Eclipse IDE ensuring broad compatibility.
Summary
The year 2025 marks significant advances in Java IDE tooling with the release of enhanced plugins across major IDEs. Eclipse IDE’s 2025 06 release focuses on greater Java language support and extensibility, IntelliJ IDEA 2025.2 delivers cutting edge AI features and support for the latest Java and Spring frameworks, and Kotlin plugin ecosystems thrive in both JetBrains and Eclipse environments. Additionally, AI tools like GitHub Copilot are increasingly integrated into developer workflows, making coding faster and smarter than ever.
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