Getting Started with Spring Boot 3:

A collection of source code generators for Java.

Statistical Machine Intelligence & Learning Engine

Gephi - The Open Graph Viz Platform

Algorithms and Data Structures implemented in Java

Cloud Dataflow Google-provided templates for solving in-Cloud data tasks

GAST is a toolkit for using Android's Sensing capabilities. It contains the examples, boiler plate code, and algorithms you need to properly use Android sensors.

A Maven plugin which wraps Launch4j

A blazingly fast and memory efficient (thread-safe) Java client on top of the BrowsCap CSV source files.

IMAP and POP3 email importer for Elasticsearch (no river anymore)

Tor research framework in Java

A Java library for byte pattern matching and searching