Java

Box2DLightslibgdx/box2dlights

A 2D lighting framework for libgdx games that uses Box2D for raycasting and OpenGL ES 2.0 for rendering.

OpenSpliceADLINK-IST/opensplice

A full implementation of the OMG Data Distribution Service (DDS) standard for real-time data sharing in distributed systems.

GraphAware Neo4j Elasticsearch Integrationgraphaware/neo4j-to-elasticsearch

A GraphAware Framework module for bi-directional integration between Neo4j and Elasticsearch, enabling asynchronous data replication and search enrichment.

dropwizard-guiceHubSpot/dropwizard-guice

A Dropwizard extension that integrates Guice dependency injection with optional auto-configuration via classpath scanning.

hgraphdbrayokota/hgraphdb

A client layer that enables HBase to function as a TinkerPop 3-compliant graph database.

externalsortinginjavalemire/externalsortinginjava

A Java library for sorting very large files using external-memory algorithms and multiple cores.

Spandexmpenet/spandex

A minimal, performant Elasticsearch REST client wrapper for Clojure built on the official Java 9.x client.

HiveRunnerklarna/HiveRunner

An open-source unit test framework for Hive SQL queries, enabling TDD without installed dependencies via JUnit 4 and 5.

Jackson-datatype-moneyzalando/jackson-datatype-money

A Jackson module for JSON serialization and deserialization of JavaMoney (javax.money) data types.

Chalkscalanlp/chalk

A Scala library for natural language processing with functional and actor-based pipelines.

OrienteerOrienteerBAP/Orienteer

A no-code/low-code business application platform for building scalable, developer-friendly applications with a dynamic data model.

OrienteerOrienteerDW/Orienteer

A no-code/low-code business application platform for building scalable, developer-friendly applications with a dynamic data model.

sqlgpietermartin/sqlg

A TinkerPop 3 implementation that enables graph database operations on top of standard SQL relational databases.

clj-jgitclj-jgit/clj-jgit

A Clojure wrapper for JGit providing a functional interface to manipulate Git repositories programmatically.

Open HTML to PDFopenhtmltopdf/openhtmltopdf

A pure-Java library for converting well-formed HTML/CSS to PDF and images with accessible PDF support.

StreamFlowlmco/streamflow

A stream processing tool with a web interface for building and monitoring Apache Storm workflows using drag-and-drop components.

Railo Documentationgetrailo/railo

An open-source, high-performance CFML server engine for running ColdFusion applications.

Dependsmultilang-depends/depends

A fast, extensible multi-language dependency extraction tool for code analysis and visualization.

PhotonNetflix/photon

A Java library for parsing, validating, and analyzing Interoperable Master Format (IMF) packages and track files.

Gradoopdbs-leipzig/gradoop

An open-source research framework for distributed temporal graph analytics built on Apache Flink.

GraphAware Neo4j Frameworkgraphaware/neo4j-framework

A Neo4j kernel extension platform for building custom transaction-driven modules that extend database functionality.

junit-dataproviderTNG/junit-dataprovider

A TestNG-like data provider runner for JUnit with many additional features for parameterized testing.

gdx-gltfmgsx-dev/gdx-gltf

A LibGDX extension providing GLTF 2.0 format support and Physically Based Rendering (PBR) shaders for 3D graphics.

GParsGPars/GPars

A concurrency and parallelism framework for Java and Groovy that provides intuitive abstractions for multi-core programming.

Driftairlift/drift

An annotation-based Java library for creating Thrift serializable types and services.

mahutaConsenSys/Mahuta

A library and service for storing, indexing, and searching files and documents on the IPFS network.

Mutability DetectorMutabilityDetector/MutabilityDetector

A lightweight analysis tool for detecting mutability in Java classes through unit tests, runtime checks, and FindBugs integration.

JMapperjmapper-framework/jmapper-core

A high-performance Java bean mapper offering elegance, robustness, and performance comparable to hand-written code.

DbFitdbfit/dbfit

A database testing framework for test-driven development of database code with readable, maintainable tests.

Background geolocationcapacitor-community/background-geolocation

A Capacitor plugin for receiving continuous geolocation updates on iOS and Android, even when the app is in the background.

DynamicReportsdynamicreports/dynamicreports

A Java reporting library for creating dynamic report designs at runtime without a visual designer.

Google HCLS Data HarmonizationGoogleCloudPlatform/healthcare-data-harmonization

A mapping language and engine for converting complex, nested data between schemas, with extensibility via plugins.

Prestoanalysys/presto-hbase-connector

A high-performance Presto connector for querying HBase with 10-100x faster performance than other open-source alternatives.

CloudSlangCloudSlang/cloud-slang

A YAML-based language and CLI for writing human-readable workflows for the CloudSlang Orchestration Engine.

dropwizard-guiceyxvik/dropwizard-guicey

Dropwizard Guice integration library providing auto-configuration, YAML bindings, and advanced web and test support.

react-native-sensor-managerkprimice/react-native-sensor-manager

A React Native wrapper for accessing native device sensors like accelerometer, gyroscope, and step counter.