Stars
RxJava – Reactive Extensions for the JVM – a library for composing asynchronous and event-based programs using observable sequences for the Java VM.
A programmer-oriented testing framework for Java.
configuration library for JVM languages using HOCON files
Micro second messaging that stores everything to disk
An uber-fast parallelized Java classpath scanner and module scanner.
AssertJ is a library providing easy to use rich typed assertions
jgrapht / jgrapht
Forked from lingeringsocket/jgraphtMaster repository for the JGraphT project
jsoniter (json-iterator) is fast and flexible JSON parser available in Java and Go
former home of the groovy programming language, moved to https://github.com/apache/groovy
EA Async implements async-await methods in the JVM.
Elegant parsing in Java and Scala - lightweight, easy-to-use, powerful.
Dead-Simple Packaging and Deployment for JVM Apps
Nailgun is a client, protocol, and server for running Java programs from the command line without incurring the JVM startup overhead.
The scala-maven-plugin (previously maven-scala-plugin) is used for compiling/testing/running/documenting scala code in maven.
Huge Collections for Java using efficient off heap storage
Library for introspecting generic type information of types, member/static methods, fields. Especially useful for POJO/Bean introspection.
A testing framework which brings powers of Spock and Groovy to Android app testing
Clojure's data structures modified for use outside of Clojure
Persistent (immutable) collections for Java and Kotlin
Enables efficient communication and data synchronization between clients and Spring server applications.
Reusable Hamcrest matchers suitable for automated testing
The Qi4j Core platform, consisting of qi4j-core-api, qi4j-core-spi, qi4j-core-runtime, qi4j-core-bootstrap and qi4j-core-testsupport