LangChain4j is an open-source Java library
JSqlParser parses an SQL statement and translate it into a hierarchy
Testcontainers is a Java library that supports JUnit tests
Uber's cross-platform mobile architecture framework
Nepxion Discovery is a solution for Spring Cloud
Apache Polaris, the interoperable, open source catalog
High-performance, open source distributed transaction solution
A user-interface library, formerly known as text, for Minecraft
Java implementation of RSocket
SonarSource Static Analyzer for Java Code Quality and Security
Free templates for AWS CloudFormation
DBMS supporting graph, document, full-text and geospatial models
Simple library for building production-ready RESTful web services
A simple mock implementation of the AWS S3 API startable as Docker
APM, (Application Performance Management) tool
An open source geocoder for openstreetmap data
Do Leetcode exercises in IDE
A scalable web crawler framework for Java
The Semantic Engine for Model Context Protocol(MCP)
Java version of the Playwright testing and automation library
PSLab Android App
Distributed Tracing, Metrics and Context Propagation for applications
Simple Binary Encoding (SBE) - High Performance Message Codec
Open source alternative to Auth0 / Firebase Auth, etc.
AWS Encryption SDK