1337 Repositories
Java algorithms-and-data-structures Libraries
The New Official Aparapi: a framework for executing native Java and Scala code on the GPU.
A framework for executing native Java code on the GPU. Licensed under the Apache Software License v2 Aparapi allows developers to write native Java co
The open-source Java obfuscation tool working with Ant and Gradle by yWorks - the diagramming experts
yGuard yGuard is an open-source Java obfuscation tool. With yGuard it is easy as pie ( 🍰 ) to configure obfuscation through an extensive ant task. yG
An extensible Java framework for building XML and non-XML streaming applications
Smooks Framework This is the Git source code repository for the Smooks Project. Build Status Building Pre-requisites JDK 8 Apache Maven 3.2.x Maven gi
A lightweight command processing pipeline ❍ ⇢ ❍ ⇢ ❍ for your Java awesome app.
PipelinR PipelinR is a lightweight command processing pipeline ❍ ⇢ ❍ ⇢ ❍ for your awesome Java app. PipelinR has been battle-proven on production, as
API gateway for REST and SOAP written in Java.
Membrane Service Proxy Reverse HTTP proxy (framework) written in Java, that can be used as an API gateway as a security proxy for HTTP based integrati
Make Slack and Facebook Bots in Java.
JBot Make bots in Java. JBot is a java framework (inspired by Howdyai's Botkit) to make Slack and Facebook bots in minutes. It provides all the boiler
A Java to iOS Objective-C translation tool and runtime.
J2ObjC: Java to Objective-C Translator and Runtime Project site: https://j2objc.org J2ObjC blog: https://j2objc.blogspot.com Questions and discussion:
Fast and reliable message broker built on top of Kafka.
Hermes Hermes is an asynchronous message broker built on top of Kafka. We provide reliable, fault tolerant REST interface for message publishing and a
Powerful event-bus optimized for high throughput in multi-threaded applications. Features: Sync and Async event publication, weak/strong references, event filtering, annotation driven
MBassador MBassador is a light-weight, high-performance event bus implementing the publish subscribe pattern. It is designed for ease of use and aims
Apache Camel is an open source integration framework that empowers you to quickly and easily integrate various systems consuming or producing data.
Apache Camel Apache Camel is a powerful, open-source integration framework based on prevalent Enterprise Integration Patterns with powerful bean integ
A modular and portable open source XMPP client library written in Java for Android and Java (SE) VMs
Smack About Smack is an open source, highly modular, easy to use, XMPP client library written in Java for Java SE compatible JVMs and Android. A pure
A distributed event bus that implements a RESTful API abstraction on top of Kafka-like queues
Nakadi Event Broker Nakadi is a distributed event bus broker that implements a RESTful API abstraction on top of Kafka-like queues, which can be used
Event bus for Android and Java that simplifies communication between Activities, Fragments, Threads, Services, etc. Less code, better quality.
EventBus EventBus is a publish/subscribe event bus for Android and Java. EventBus... simplifies the communication between components decouples event s
Efficient reliable UDP unicast, UDP multicast, and IPC message transport
Aeron Efficient reliable UDP unicast, UDP multicast, and IPC message transport. Java and C++ clients are available in this repository, and a .NET clie
Datumbox is an open-source Machine Learning framework written in Java which allows the rapid development of Machine Learning and Statistical applications.
Datumbox Machine Learning Framework The Datumbox Machine Learning Framework is an open-source framework written in Java which allows the rapid develop
Model import deployment framework for retraining models (pytorch, tensorflow,keras) deploying in JVM Micro service environments, mobile devices, iot, and Apache Spark
The Eclipse Deeplearning4J (DL4J) ecosystem is a set of projects intended to support all the needs of a JVM based deep learning application. This mean
Apache Flink
Apache Flink Apache Flink is an open source stream processing framework with powerful stream- and batch-processing capabilities. Learn more about Flin
Apache Spark - A unified analytics engine for large-scale data processing
Apache Spark Spark is a unified analytics engine for large-scale data processing. It provides high-level APIs in Scala, Java, Python, and R, and an op
Statistical Machine Intelligence & Learning Engine
Smile Smile (Statistical Machine Intelligence and Learning Engine) is a fast and comprehensive machine learning, NLP, linear algebra, graph, interpola
Stream Processing and Complex Event Processing Engine
Siddhi Core Libraries Siddhi is a cloud native Streaming and Complex Event Processing engine that understands Streaming SQL queries in order to captur
Java Statistical Analysis Tool, a Java library for Machine Learning
Java Statistical Analysis Tool JSAT is a library for quickly getting started with Machine Learning problems. It is developed in my free time, and made
tinylog is a lightweight logging framework for Java, Kotlin, Scala, and Android
tinylog 2 Example import org.tinylog.Logger; public class Application { public static void main(String[] args) { Logger.info("Hello
Apache Log4j 2 is an upgrade to Log4j that provides significant improvements over its predecessor, Log4j 1.x, and provides many of the improvements available in Logback while fixing some inherent problems in Logback's architecture.
Apache Log4j 2 Apache Log4j 2 is an upgrade to Log4j that provides significant improvements over its predecessor, Log4j 1.x, and provides many of the
The reliable, generic, fast and flexible logging framework for Java.
About logback Thank you for your interest in logback, the reliable, generic, fast and flexible logging library for Java. The Logback documentation can
Free and open source log management
Graylog Welcome! Graylog is an open source log management platform. You can read more about the project on our website and check out the documentation
Logstash - transport and process your logs, events, or other data
Logstash Logstash is part of the Elastic Stack along with Beats, Elasticsearch and Kibana. Logstash is a server-side data processing pipeline that ing
Best-of-breed OpenTracing utilities, instrumentations and extensions
OpenTracing Toolbox OpenTracing Toolbox is a collection of libraries that build on top of OpenTracing and provide extensions and plugins to existing i
P6Spy is a framework that enables database data to be seamlessly intercepted and logged with no code changes to the application.
p6spy P6Spy is a framework that enables database data to be seamlessly intercepted and logged with no code changes to existing application. The P6Spy
An extensible Java library for HTTP request and response logging
Logbook: HTTP request and response logging Logbook noun, /lɑɡ bʊk/: A book in which measurements from the ship's log are recorded, along with other sa
The Java microservice lib. QBit is a reactive programming lib for building microservices - JSON, HTTP, WebSocket, and REST. QBit uses reactive programming to build elastic REST, and WebSockets based cloud friendly, web services. SOA evolved for mobile and cloud. ServiceDiscovery, Health, reactive StatService, events, Java idiomatic reactive programming for Microservices.
QBit Java Micorservices lib tutorials| QBit Website | QBit uses Reakt | QBit works with Vert.x | Reakt Vertx QBit - The Microservice Lib for Java - JS
Opinionated libraries for HTTP&JSON-based RPC using Retrofit, Feign, OkHttp as clients and Jetty/Jersey as servers
Conjure Java Runtime (formerly http-remoting) This repository provides an opinionated set of libraries for defining and creating RESTish/RPC servers a
A powerful flow control component enabling reliability, resilience and monitoring for microservices. (面向云原生微服务的高可用流控防护组件)
Sentinel: The Sentinel of Your Microservices Introduction As distributed systems become increasingly popular, the reliability between services is beco
AWS Service registry for resilient mid-tier load balancing and failover.
Eureka Eureka is a REST (Representational State Transfer) based service that is primarily used in the AWS cloud for locating services for the purpose
Your go-to microservice framework for any situation, from the creator of Netty et al. You can build any type of microservice leveraging your favorite technologies, including gRPC, Thrift, Kotlin, Retrofit, Reactive Streams, Spring Boot and Dropwizard.
Visit the official web site for more information. Armeria Build a reactive microservice at your pace, not theirs. Armeria is your go-to microservice f
Java CMS engine. Host and develop multiple websites inside a single instance through the GUI and benefit from features like A/B testing, affiliate tracking tools, and a high performance template engine with CSS stylesheets processing & scripts minification.
Free enterprise Java CMS https://ncms.softmotions.com ηCMS features Multiple websites on a single ηCMS application node. Can handle hundreds of simult
ZK is a highly productive Java framework for building amazing enterprise web and mobile applications
ZK ZK is a highly productive Java framework for building amazing enterprise web and mobile applications. Resources Documentation Tutorial ZK Essential
The modular web framework for Java and Kotlin
∞ do more, more easily Jooby is a modern, performant and easy to use web framework for Java and Kotlin built on top of your favorite web server. Java:
Ninja is a full stack web framework for Java. Rock solid, fast and super productive.
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:rocket: Lightning fast and elegant mvc framework for Java8
Based on Java8 + Netty4 to create a lightweight, high-performance, simple and elegant Web framework 😋 Spend 1 hour to learn it to do something intere
Eclipse OpenJ9: A Java Virtual Machine for OpenJDK that's optimized for small footprint, fast start-up, and high throughput. Builds on Eclipse OMR (https://github.com/eclipse/omr) and combines with the Extensions for OpenJDK for OpenJ9 repo.
Welcome to the Eclipse OpenJ9 repository We're not sure which route you might have taken on your way here, but we're really pleased to see you! If you
[INACTIVE] Avian is a lightweight virtual machine and class library designed to provide a useful subset of Java's features, suitable for building self-contained applications.
Avian - A lightweight Java Virtual Machine (JVM) PLEASE NOTE: This project is not currently being developed, maintained, or supported. Feel free to us
A modern JSON library for Kotlin and Java.
Moshi Moshi is a modern JSON library for Android and Java. It makes it easy to parse JSON into Java objects: String json = ...; Moshi moshi = new Mos
Screaming fast JSON parsing and serialization library for Android.
#LoganSquare The fastest JSON parsing and serializing library available for Android. Based on Jackson's streaming API, LoganSquare is able to consiste
Set of support modules for Java 8 datatypes (Optionals, date/time) and features (parameter names)
Overview This is a multi-module umbrella project for Jackson modules needed to support Java 8 features, especially with Jackson 2.x that only requires
A Java serialization/deserialization library to convert Java Objects into JSON and back
Gson Gson is a Java library that can be used to convert Java Objects into their JSON representation. It can also be used to convert a JSON string to a
A simple Java Scheduler library with a minimal footprint and a straightforward API
Wisp Scheduler Wisp is a library for managing the execution of recurring Java jobs. It works like the Java class ScheduledThreadPoolExecutor, but it c
An extremely easy way to perform background processing in Java. Backed by persistent storage. Open and free for commercial use.
The ultimate library to perform background processing on the JVM. Dead simple API. Extensible. Reliable. Distributed and backed by persistent storage.
jOOR - Fluent Reflection in Java jOOR is a very simple fluent API that gives access to your Java Class structures in a more intuitive way. The JDK's reflection APIs are hard and verbose to use. Other languages have much simpler constructs to access type meta information at runtime. Let us make Java reflection better.
Overview jOOR stands for jOOR Object Oriented Reflection. It is a simple wrapper for the java.lang.reflect package. jOOR's name is inspired by jOOQ, a
An uber-fast parallelized Java classpath scanner and module scanner.
ClassGraph ClassGraph is an uber-fast parallelized classpath scanner and module scanner for Java, Scala, Kotlin and other JVM languages. ClassGraph wo
Published on Maven Central and jCenter Java Library that compares 2 images with the same sizes and shows the differences visually by drawing rectangles. Some parts of the image can be excluded from the comparison. Can be used for automation qa tests.
About Configurations Release Notes Usage Demo License Contributing Code of Conduct Other Projects About Published on Maven Central and jCenter Java Li
TwelveMonkeys ImageIO: Additional plug-ins and extensions for Java's ImageIO
About TwelveMonkeys ImageIO is a collection of plugins and extensions for Java's ImageIO. These plugins extend the number of image file formats suppor
Asynchronous Http and WebSocket Client library for Java
Async Http Client Follow @AsyncHttpClient on Twitter. The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and a
Java Collections till the last breadcrumb of memory and performance
Koloboke A family of projects around collections in Java (so far). The Koloboke Collections API A carefully designed extension of the Java Collections
JCTools - Concurrency tools currently missing from the JDK.
JCTools Java Concurrency Tools for the JVM. This project aims to offer some concurrent data structures currently missing from the JDK: SPSC/MPSC/SPMC/
Eclipse Collections is a collections framework for Java with optimized data structures and a rich, functional and fluent API.
English | 中文 | Deutsch | Español | Ελληνικά | Français | 日本語 | Norsk (bokmål) | Português-Brasil | Русский | हिंदी Eclipse Collections is a comprehens
High Performance data structures and utility methods for Java
Agrona Agrona provides a library of data structures and utility methods that are a common need when building high-performance applications in Java. Ma
Vector map library and writer - running on Android and Desktop.
Mapsforge See the integration guide and changelog. And read through how to contribute guidelines. If you have any questions or problems, don't hesitat
Backport of functionality based on JSR-310 to Java SE 6 and 7. This is NOT an implementation of JSR-310.
ThreeTen backport project JSR-310 provides a new date and time library for Java SE 8. This project is the backport to Java SE 6 and 7. See the main ho
Joda-Time is the widely used replacement for the Java date and time classes prior to Java SE 8.
Joda-Time Joda-Time provides a quality replacement for the Java date and time classes. The design allows for multiple calendar systems, while still pr
LWJGL is a Java library that enables cross-platform access to popular native APIs useful in the development of graphics (OpenGL, Vulkan), audio (OpenAL), parallel computing (OpenCL, CUDA) and XR (OpenVR, LibOVR) applications.
LWJGL - Lightweight Java Game Library 3 LWJGL (https://www.lwjgl.org) is a Java library that enables cross-platform access to popular native APIs usef
Functional patterns for Java
λ Functional patterns for Java Table of Contents Background Installation Examples Semigroups Monoids Functors Bifunctors Profunctors Applicatives Mona
Backport of Java 8's lambda expressions to Java 7, 6 and 5
Retrolambda: Use Lambdas on Java 7 Just as there was Retroweaver et al. for running Java 5 code with generics on Java 1.4, Retrolambda lets you run Ja
vʌvr (formerly called Javaslang) is a non-commercial, non-profit object-functional library that runs with Java 8+. It aims to reduce the lines of code and increase code quality.
Vavr is an object-functional language extension to Java 8, which aims to reduce the lines of code and increase code quality. It provides persistent co
jOOλ - The Missing Parts in Java 8 jOOλ improves the JDK libraries in areas where the Expert Group's focus was elsewhere. It adds tuple support, function support, and a lot of additional functionality around sequential Streams. The JDK 8's main efforts (default methods, lambdas, and the Stream API) were focused around maintaining backwards compatibility and implementing a functional API for parallelism.
jOOλ jOOλ is part of the jOOQ series (along with jOOQ, jOOX, jOOR, jOOU) providing some useful extensions to Java 8 lambdas. It contains these classes
Java 8 annotation processor and framework for deriving algebraic data types constructors, pattern-matching, folds, optics and typeclasses.
Derive4J: Java 8 annotation processor for deriving algebraic data types constructors, pattern matching and more! tl;dr Show me how to write, say, the
An advanced, but easy to use, platform for writing functional applications in Java 8.
Getting Cyclops X (10) The latest version is cyclops:10.4.0 Stackoverflow tag cyclops-react Documentation (work in progress for Cyclops X) Integration
Concourse is a container-based continuous thing-doer written in Go and Elm.
Concourse: the continuous thing-doer. Concourse is an automation system written in Go. It is most commonly used for CI/CD, and is built to scale to an
JitPack is a novel package repository for JVM and Android projects.
JitPack is a novel package repository for JVM and Android projects. It builds Git projects on demand and provides you with ready-to-use artifacts (jar, aar).
JPF is an extensible software analysis framework for Java bytecode. jpf-core is the basis for all JPF projects; you always need to install it. It contains the basic VM and model checking infrastructure, and can be used to check for concurrency defects like deadlocks, and unhandled exceptions like NullPointerExceptions and AssertionErrors.
Java Pathfinder (JPF) An extensible software model checking framework for Java bytecode programs General Information about JPF All the latest developm
A Java library for technical analysis.
ta4j Technical Analysis For Java Ta4j is an open source Java library for technical analysis. It provides the basic components for creation, evaluation
Packages your JAR, assets and a JVM for distribution on Windows, Linux and Mac OS X
About Packages your JAR, assets and a JVM for distribution on Windows, Linux and macOS, adding a native executable file to make it appear like a nativ
:package: Gradle/Maven plugin to package Java applications as native Windows, Mac OS X, or GNU/Linux executables and create installers for them.
JavaPackager JavaPackager is a hybrid plugin for Maven and Gradle which provides an easy way to package Java applications in native Windows, Mac OS X
Dead-Simple Packaging and Deployment for JVM Apps
Capsule Dead-Simple Packaging and Deployment for JVM Applications Capsule is a packaging and deployment tool for JVM applications. A capsule is a sing
:fire: Seata is an easy-to-use, high-performance, open source distributed transaction solution.
Seata: Simple Extensible Autonomous Transaction Architecture What is Seata? A distributed transaction solution with high performance and ease of use f
Zuul is a gateway service that provides dynamic routing, monitoring, resiliency, security, and more.
Zuul Zuul is an L7 application gateway that provides capabilities for dynamic routing, monitoring, resiliency, security, and more. Please view the wik
ScaleCube Services is a high throughput, low latency reactive microservices library built to scale. it features: API-Gateways, service-discovery, service-load-balancing, the architecture supports plug-and-play service communication modules and features. built to provide performance and low-latency real-time stream-processing. its open and designed to accommodate changes. (no sidecar in a form of broker or any kind)
scalecube-services MICROSERVICES 2.0 An open-source project that is focused on streamlining reactive-programming of Microservices Reactive-systems tha
Resilience4j is a fault tolerance library designed for Java8 and functional programming
Fault tolerance library designed for functional programming Table of Contents 1. Introduction 2. Documentation 3. Overview 4. Resilience patterns 5. S
Fibers, Channels and Actors for the JVM
Quasar Fibers, Channels and Actors for the JVM Getting started Add the following Maven/Gradle dependencies: Feature Artifact Core (required) co.parall
Open Source In-Memory Data Grid
Hazelcast Hazelcast is an open-source distributed in-memory data store and computation platform. It provides a wide variety of distributed data struct
Fault tolerance and resilience patterns for the JVM
Failsafe Failsafe is a lightweight, zero-dependency library for handling failures in Java 8+, with a concise API for handling everyday use cases and t
A reactive Java framework for building fault-tolerant distributed systems
Atomix Website | Javadoc | Slack | Google Group A reactive Java framework for building fault-tolerant distributed systems Please see the website for f
simple tail call optimization and stack safety for Java
com.github.kag0.tail simple tail call optimization for Java enables infinitely deep tail recursive calls without throwing a StackOverflowError no tran
Java library for handling exceptions in concise, unified, and architecturally clean way.
NoException NoException is a Java library for handling exceptions in concise, unified, and architecturally clean way. System.out.println(Exceptions.lo
Manifold plugs into Java to supplement it with powerful features, from Type-safe Metaprogramming (direct access to GraphQL, JSON, XML, etc.), Extension Methods, Operator Overloading, and Unit Expressions to an integrated Template Engine and a Preprocessor. All fully supported in IntelliJ IDEA and Android Studio. Simply add Manifold to your project and begin taking advantage of it.
What is Manifold? Manifold plugs into Java to supplement it with powerful features, including: Type-safe Meta-programming Extension Methods Operator O
Java 1-15 Parser and Abstract Syntax Tree for Java, including preview features to Java 13
JavaParser This project contains a set of libraries implementing a Java 1.0 - Java 14 Parser with advanced analysis functionalities. This includes pre
A fast dependency injector for Android and Java.
Dagger A fast dependency injector for Java and Android. Dagger is a compile-time framework for dependency injection. It uses no reflection or runtime
Guice (pronounced 'juice') is a lightweight dependency injection framework for Java 6 and above, brought to you by Google.
Guice Latest release: 5.0.1 Documentation: User Guide, 5.0.1 javadocs, Latest javadocs Continuous Integration: Mailing Lists: User Mailing List Licens
Governator is a library of extensions and utilities that enhance Google Guice to provide: classpath scanning and automatic binding, lifecycle management, configuration to field mapping, field validation and parallelized object warmup.
Governator DESCRIPTION Governator is a library of extensions and utilities that enhance Google Guice to provide injector lifecycle and well as support
Lightweight dependency injection for Java and Android (JSR-330)
About Feather Feather is an ultra-lightweight dependency injection (JSR-330) library for Java and Android. Dependency injection frameworks are often p
Advanced date, time and interval library for Java with sun/moon-astronomy and calendars like Chinese, Coptic, Ethiopian, French Republican, Hebrew, Hijri, Historic Christian, Indian National, Japanese, Julian, Korean, Minguo, Persian, Thai, Vietnamese
Time4J Advanced date, time and interval library for Java Motivation: Time4J is thought as a complete and high-end replacement for old java classes aro
A Java library for parsing and building iCalendar data models
iCal4j - iCalendar parser and object model Table of Contents Introduction - What is iCal4j? Setup - Download and installation of iCal4j System require
Transactional schema-less embedded database used by JetBrains YouTrack and JetBrains Hub.
JetBrains Xodus is a transactional schema-less embedded database that is written in Java and Kotlin. It was initially developed for JetBrains YouTrack
Vibur DBCP - concurrent and dynamic JDBC connection pool
Vibur DBCP is concurrent, fast, and fully-featured JDBC connection pool, which provides advanced performance monitoring capabilities, including slow S
Speedment is a Stream ORM Java Toolkit and Runtime
Java Stream ORM Speedment is an open source Java Stream ORM toolkit and runtime. The toolkit analyzes the metadata of an existing SQL database and aut
Redisson - Redis Java client with features of In-Memory Data Grid. Over 50 Redis based Java objects and services: Set, Multimap, SortedSet, Map, List, Queue, Deque, Semaphore, Lock, AtomicLong, Map Reduce, Publish / Subscribe, Bloom filter, Spring Cache, Tomcat, Scheduler, JCache API, Hibernate, MyBatis, RPC, local cache ...
Redisson - Redis Java client with features of In-Memory Data Grid Quick start | Documentation | Javadocs | Changelog | Code examples | FAQs | Report a
Official repository of Trino, the distributed SQL query engine for big data, formerly known as PrestoSQL (https://trino.io)
Trino is a fast distributed SQL query engine for big data analytics. See the User Manual for deployment instructions and end user documentation. Devel
MapDB provides concurrent Maps, Sets and Queues backed by disk storage or off-heap-memory. It is a fast and easy to use embedded Java database engine.
MapDB: database engine MapDB combines embedded database engine and Java collections. It is free under Apache 2 license. MapDB is flexible and can be u
A blazingly small and sane redis java client
Jedis Jedis is a blazingly small and sane Redis java client. Jedis was conceived to be EASY to use. Jedis is fully compatible with redis 2.8.x, 3.x.x
FlexyPool adds metrics and failover strategies to a given Connection Pool, allowing it to resize on demand.
Introduction The FlexyPool library adds metrics and flexible strategies to a given Connection Pool, allowing it to resize on demand. This is very hand
eXist Native XML Database and Application Platform
eXist-db Native XML Database eXist-db is a high-performance open source native XML database—a NoSQL document database and application platform built e