scouter-project / scouter

Scouter is an open source APM (Application Performance Management) tool.

jdbi / jdbi

The Jdbi library provides convenient, idiomatic access to relational databases in Java and other JVM technologies such as Kotlin, Clojure or Scala.

neoforged / NeoForge

A modding API for Minecraft: Java Edition, based on Forge

INRIA / spoon

Spoon is a metaprogramming library to analyze and transform Java source code. :spoon: is made with :heart:, :beers: and :sparkles:. It parses source files to build a well-designed AST with powerful analysis and transformation API.

ratpack / ratpack

Lean & powerful HTTP apps

YeautyYE / netty-websocket-spring-boot-starter

:rocket: lightweight high-performance WebSocket framework （ 轻量级、高性能的WebSocket框架）

Discord4J / Discord4J

Discord4J is a fast, powerful, unopinionated, reactive library to enable quick and easy development of Discord bots for Java, Kotlin, and other JVM languages using the official Discord Bot API.

jbangdev / jbang

Unleash the power of Java - JBang Lets Students, Educators and Professional Developers create, edit and run self-contained source-only Java programs with unprecedented ease.

neo4j-contrib / neo4j-apoc-procedures

Awesome Procedures On Cypher for Neo4j - codenamed "apoc"                     If you like it, please ★ above ⇧            

sqlancer / sqlancer

Automated testing to find logic and performance bugs in database systems

apache / eventmesh

EventMesh is a new generation serverless event middleware for building distributed event-driven applications.

aklivity / zilla

🦎 A lightweight, multi-protocol gateway for event-driven applications and AI agents. Expose and govern Kafka, MQTT, APIs, and MCP through one high-performance engine with shared routing, security, schema, and observability.

kagkarlsson / db-scheduler

Persistent cluster-friendly scheduler for Java

OpenEMS / openems

OpenEMS - Open Source Energy Management System

javers / javers

JaVers - object auditing and diff framework for Java

java-diff-utils / java-diff-utils

Diff Utils library is an OpenSource library for performing the comparison / diff operations between texts or some kind of data: computing diffs, applying patches, generating unified diffs or parsing them, generating diff output for easy future displaying (like side-by-side view) and so on.

cgeo / cgeo

c:geo - The powerful Android geocaching app.

vladmihalcea / high-performance-java-persistence

The High-Performance Java Persistence book and video course code examples

VazkiiMods / Botania

A tech mod for Minecraft themed around the magic of nature and plant life.

jenkinsci / gitlab-plugin

A Jenkins plugin for interfacing with GitLab

apache / rocketmq-dashboard

The state-of-the-art Dashboard of Apache RoccketMQ provides excellent monitoring capability. Various graphs and statistics of events, performance and system information of clients and application is evidently made available to the user.

Netflix / hollow

Hollow is a java library and toolset for disseminating in-memory datasets from a single producer to many consumers for high performance read-only access.

SkriptLang / Skript

Skript is a Paper plugin which allows server admins to customize their server easily, but without the hassle of programming a plugin or asking/paying someone to program a plugin for them.

lucko / spark

A performance profiler for Minecraft clients, servers, and proxies.

sirthias / parboiled

Elegant parsing in Java and Scala - lightweight, easy-to-use, powerful.

microsoft / gctoolkit

Tool for parsing GC logs

LINBIT / linstor-server

High Performance Software-Defined Block Storage for container, cloud and virtualisation. Fully integrated with Docker, Kubernetes, Openstack, Proxmox etc.

bbottema / simple-java-mail

Simple API, Complex Emails (Jakarta Mail smtp wrapper)

mucommander / mucommander

A lightweight, cross-platform file manager with a dual-pane interface

jreleaser / jreleaser

:rocket: Release projects quickly and easily with JReleaser

sakaiproject / sakai

Sakai is a freely available, feature-rich technology solution for learning, teaching, research and collaboration. Sakai is an open source software suite developed by a diverse and global adopter community.

potato-security / PotatoTool

这款工具是一款功能强大的网络安全综合工具，旨在为安全从业者、红蓝对抗人员和网络安全爱好者提供全面的网络安全解决方案。它集成了多种实用功能，包括解密、分析、扫描、溯源等，为用户提供了便捷的操作界面和丰富的功能选择。This tool offers robust network security solutions for professionals and enthusiasts. With features like decryption, analysis, scanning, and traceability, it provides a user-friendly interface and diverse functionality.

sirixdb / sirix

SirixDB is an an embeddable, bitemporal, append-only database system and event store, storing immutable lightweight snapshots. It keeps the full history of each resource. Every commit stores a space-efficient snapshot through structural sharing. It is log-structured and never overwrites data. SirixDB uses a novel page-level versioning approach.

MCreator / MCreator

MCreator is an open-source software used to make Minecraft Java Edition mods, Minecraft Bedrock Edition Add-Ons, resource packs, and data packs using an intuitive easy-to-learn interface or with an integrated code editor. It is used worldwide by Minecraft players, aspiring mod developers, for education, online classes, and STEM workshops.

CardboardPowered / cardboard

The Bukkit/Spigot/Paper API implementation for Fabric

apache / accumulo

Apache Accumulo

SpongePowered / SpongeAPI

A Minecraft plugin API

gitlab4j / gitlab4j-api

GitLab4J API (gitlab4j-api) provides a full featured Java client library for working with GitLab repositories via the GitLab REST API

apache / cordova-plugin-inappbrowser

Apache Cordova InAppBrowser Plugin

microsoft / mssql-jdbc

The Microsoft JDBC Driver for SQL Server is a Type 4 JDBC driver that provides database connectivity with SQL Server through the standard JDBC application program interfaces (APIs).

Slimefun / Slimefun4

Slimefun 4 - A unique Spigot/Paper plugin that looks and feels like a modpack. We've been giving you backpacks, jetpacks, reactors and much more since 2013.

apache / ofbiz-framework

Apache OFBiz is an open source product for the automation of enterprise processes. It includes framework components and business applications for ERP, CRM, E-Business/E-Commerce, Supply Chain Management and Manufacturing Resource Planning. OFBiz provides a foundation and starting point for reliable, secure and scalable enterprise solutions.

marcosbarbero / spring-cloud-zuul-ratelimit

Rate limit auto-configure for Spring Cloud Netflix Zuul

hivemq / hivemq-mqtt-client

HiveMQ MQTT Client is an MQTT 5.0 and MQTT 3.1.1 compatible and feature-rich high-performance Java client library with different API flavours and backpressure support

Winds-Studio / Leaf

A Paper fork focused on finding the balance between performance, vanilla mechanics, and stability

Multiverse / Multiverse-Core

The original Bukkit Multi-World Plugin!

IQSS / dataverse

Open source research data repository software

apache / celeborn

Apache Celeborn is an elastic and high-performance service for shuffle and spilled data.

ngs-doo / dsl-json

High performance JVM JSON library

carrotsearch / hppc

High Performance Primitive Collections for Java

plan-player-analytics / Plan

Player Analytics plugin for Minecraft Server platforms - View player activity of your server with ease. :calendar:

yahoo / elide

Elide is a Java library that lets you stand up a GraphQL/JSON-API web service with minimal effort.

microsoft / HydraLab

Intelligent cloud testing made easy.

openjdk / jmc

https://openjdk.org/projects/jmc OpenJDK Mission Control, a production time profiling and diagnostics tools suite.

operator-framework / java-operator-sdk

Java SDK for building Kubernetes Operators

eclipse-ditto / ditto

Eclipse Ditto™: Digital Twin framework of Eclipse IoT - main repository

RPTools / maptool

Virtual Tabletop for playing roleplaying games with remote players or face to face.

odpi / egeria

Egeria core

lucee / Lucee

Lucee is a high-performance, open-source CFML server written in Java. Supporting JDBC, Caching, Parallelism, HTTP, ORM, REST, S3 and dynamic Java integration, Lucee is great for developers aiming to build fast, scalable applications, delivering faster startup, rapid compilation and better runtime performance.

Erudika / scoold

The Stack Overflow clone for your team (self-hosted or hosted)