Stars
Netty project - an event-driven asynchronous network application framework
JDK main-line development https://openjdk.org/projects/jdk
A Java 8+ Jar & Android APK Reverse Engineering Suite (Decompiler, Editor, Debugger & More)
Apache Pulsar - distributed pub-sub messaging system
Very spicy additions to the Java programming language.
The Java gRPC implementation. HTTP/2 based RPC
Testcontainers is a Java library that supports JUnit tests, providing lightweight, throwaway instances of common databases, Selenium web browsers, or anything else that can run in a Docker container.
Catch common Java mistakes as compile-time errors
Asynchronous Http and WebSocket Client library for Java
Advanced Java Redis client for thread-safe sync, async, and reactive usage. Supports Cluster, Sentinel, Pipelining, and codecs.
Fork of tagtraum industries' GCViewer. Tagtraum stopped development in 2008, I aim to improve support for Sun's / Oracle's java 1.6+ garbage collector logs (including G1 collector)
General data-binding package for Jackson: works on streaming API (core) implementation(s)
Apache Heron (Incubating) is a realtime, distributed, fault-tolerant stream processing engine from Twitter
Backport of Java 8's lambda expressions to Java 7, 6 and 5
Log analyser / visualiser for Java HotSpot JIT compiler. Inspect inlining decisions, hot methods, bytecode, and assembly. View results in the JavaFX user interface.
VisualVM is an All-in-One Java Troubleshooting Tool
Compiles Java bytecode to JavaScript, WebAssembly and C
Twitter4J is an open-source Java library for the Twitter API.
jgrapht / jgrapht
Forked from lingeringsocket/jgraphtMaster repository for the JGraphT project
The official MongoDB drivers for Java, Kotlin, and Scala
JeroMQ is a pure Java implementation of the ZeroMQ messaging library, offering high-performance asynchronous messaging for distributed or concurrent applications.
Core part of Jackson that defines Streaming API as well as basic shared abstractions