Design patterns implemented in Java

A high performance caching library for Java

Java (and original) version of Hamcrest

Clean Architecture Example (Java): Example of what clean architecture would look like (in Java)

DICOM Implementation in JAVA

True Object-Oriented Java Web Framework without NULLs, Static Methods, Annotations, and Mutable Objects

Java Object-Oriented Wrapper of GitHub API, with a fake implementation of the entire GitHub API (for your tests)

Micrometer instrument for gRPC

Aggregating Profiler provide basic API for application metrics measurement.