Spring Batch is a framework for writing batch applications using Java
Soot - A Java optimization framework
Provides support to increase developer productivity in Java
A fast, lightweight and more productive microservices framework
Simple Binary Encoding (SBE) - High Performance Message Codec
Unified programming model for Batch and Streaming
The Enterprise-ready testing and specification framework
Math Parser: Java, C#, C++, Kotlin, Android, and all .NET platforms
TestNG testing framework
True object-oriented Java web framework without NULLs
Socket.IO server implemented on Java
Yet Another Validation for Java
Grails - the Web Application Framework
A Gradle plugin that publishes your Android and Kotlin libraries
Micronaut Application Framework
Apache Shiro
Provide support to increase developer productivity in Java
A blazing fast multi-language serialization framework
JetCache is a Java cache framework
A scalable web crawler framework for Java
Spring Boot starter module for gRPC framework
Hawtio web console helps you manage your JVM stuff and stay cool
Framework for Evolutionary Message-Driven Microservices on the JVM
Roaring bitmaps in Go (golang)