High level API to generate and transform Java byte code.

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

The Apache Commons Collections package contains types that extend and augment the Java Collections Framework.

Apache Commons Logging is a thin adapter allowing configurable bridging to other,

flexible XML framework for Java

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

Groovy: A powerful, dynamic language for the JVM

Java Servlet is the foundation web specification in the Java Enterprise Platform. Developers can build web applications ...

Jaxen is a universal XPath engine for Java.

A complete, Java-based solution for accessing, manipulating,

OGNL - Core module of Object Graph Navigation Library

Basic building block for Spring that in conjunction with Spring Beans provides dependency injection and IoC features.

Apache Velocity is a general purpose template engine.

ASM, a very small and fast Java bytecode manipulation framework

EasyMock provides an easy way to create Mock Objects for interfaces and classes generating them on the fly

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

Excalibur's Logkit package