Stars
Netty project - an event-driven asynchronous network application framework
A high performance caching library for Java
Open source alternative to Auth0 / Firebase Auth / AWS Cognito
Vert.x is a tool-kit for building reactive applications on the JVM
Generate diagrams from textual description
A Java API for generating .java source files.
Runtime code generation for the Java virtual machine.
Open source routing engine for OpenStreetMap. Use it as Java library or standalone web server.
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.
H2 is an embeddable RDBMS written in Java.
A better compressed bitset in Java: used by Apache Spark, Netflix Atlas, Apache Pinot, Tablesaw, and many others
Log analyser / visualiser for Java HotSpot JIT compiler. Inspect inlining decisions, hot methods, bytecode, and assembly. View results in the JavaFX user interface.
Modern IntelliJ plugin to learn shortcuts for buttons
An uber-fast parallelized Java classpath scanner and module scanner.
Fluent testing assertions for Java and the JVM
TCP/HTTP/UDP/QUIC client/server with Reactor over Netty
fastutil extends the Java™ Collections Framework by providing type-specific maps, sets, lists and queues.
Apache TinkerPop - a graph computing framework
KeyStore Explorer is a free GUI replacement for the Java command-line utilities keytool and jarsigner.
Zero-allocation hashing for Java
Okay, it's pretty easy to instantiate objects in Java through standard reflection. However there are many cases where you need to go beyond what reflection provides. For example, if there's no publ…
Official MiG Layout for Swing, SWT and JavaFX
⚗️ Lightweight HTTP extensions for Java & Kotlin
An in memory implementation of a JSR-203 file system