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Top 23 Java Development Projects
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JHipster
JHipster, much like Spring initializr, is a generator to create a boilerplate backend application, but also with an integrated front end implementation in React, Vue or Angular. In their own words, it "Is a development platform to quickly generate, develop, & deploy modern web applications & microservice architectures."
Even worse, 95 (60%) of those pull requests were merged into the main branch, 50 of them by a bot user, without any user interaction. This led to the malicious package being pushed to production code in less than an hour, as showcased by the jhipster/generator-jhipster repository.
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Here we are using Lombok's @Data and @Builder annotations to auto-generate boilerplate code, saving keystrokes and valuable developer time.
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JavaParser
Java 1-25 Parser and Abstract Syntax Tree for Java with advanced analysis functionalities.
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Immutables
Java annotation processor to create immutable objects and builders, for records too. Sweep boilerplate code under the rug!
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CircleMenu for Android
:octocat: ⭕️ CircleMenu is a simple, elegant UI menu with a circular layout and material design animations. Android UI library made by @Ramotion
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ByteChef
Open-source platform that unifies AI agent orchestration and workflow automation — autonomy and precision in one platform.
Project mention: Show HN: ByteChef – Open-source alternative to Zapier/n8n with Apache 2.0 core | news.ycombinator.com | 2026-04-23 -
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Project mention: How I Used the JVM’s JDWP to Cut GlassFish Redeploys from 2 Minutes to 5 Seconds | dev.to | 2026-06-02
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NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
Java Development discussion
Java Development related posts
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How I Used the JVM’s JDWP to Cut GlassFish Redeploys from 2 Minutes to 5 Seconds
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Renovate & Dependabot: The New Malware Delivery System
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Show HN: ByteChef – Open-source alternative to Zapier/n8n with Apache 2.0 core
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Cross-Parameter Validation with Spring
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A Practical Guide to Building Your First Automation Workflow
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Are you really wasting your time in Java without these 10 libraries?
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Spring Data JPA Best Practices: Entity Design Guide
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A note from our sponsor - SaaSHub
www.saashub.com | 20 Jun 2026
Index
What are some of the best open-source Development projects in Java? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | JHipster | 22,419 |
| 2 | Lombok | 13,454 |
| 3 | Auto | 10,547 |
| 4 | JavaParser | 6,112 |
| 5 | Immutables | 3,563 |
| 6 | Spring Loaded | 2,720 |
| 7 | HotswapAgent | 2,596 |
| 8 | CircleMenu for Android | 1,886 |
| 9 | DCEVM | 1,851 |
| 10 | ByteChef | 773 |
| 11 | Mockneat | 536 |
| 12 | Eclipse GlassFish | 445 |
| 13 | AspectJ | 391 |
| 14 | Data-Engineering-Roadmap | 245 |
| 15 | Fibry | 231 |
| 16 | ADT4J | 149 |
| 17 | ddev-intellij-plugin | 128 |
| 18 | SneakyThrow | 80 |
| 19 | Java Restify | 33 |
| 20 | Tail | 30 |
| 21 | ProxyBuilder | 26 |
| 22 | subspace-infinity | 20 |
| 23 | Nasher | 16 |
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