Apache Commons BeanUtils provides an easy-to-use but flexible wrapper around reflection and introspection.

The Apache Commons IO library contains utility classes, stream implementations, file filters,

Apache Commons Lang, a package of Java utility classes for the classes that are in java.lang's hierarchy, or are ...

Parser/Validator of OpenAPI definitions from JSON or YAML formats. Definitions are parsed into a swagger-core model.

FreeMarker is a "template engine"; a generic tool to generate text output based on templates.

A Java 1.6+ library providing a clean and lightweight markdown processor

JUnit Jupiter is the API for writing tests using JUnit 5.