The Elementary Plugin Framework for Java (EPF4J) is a collection of classes that allow the integration of a simple yet functional plugin framework to applications. The design goals were simplicity, ease of use, and low cost/effort of integration. Elementary Plugin Framework for Java 11 License -...
This library is an Object/Relation mapping framework for Java. It is designed to be easy to use (no xmls to write, no tables to create, no primary keys to fiddle with, just point it to the database) with automatic generator of objects. Java Database Object Framework 1.0 License - Artistic License
Annotated GUI: Automatic GUI generating framework from java annotations annotatedGUI 1.0 License - GNU General Public License (GPL)
A framework of Java components for building applications that operate on the popular Squawkbox/ProController protocols used for Internet real-time Air Traffic Control and flying simulation. The big networks are VATSIM (www.vatsim.net) and IVAO (ivao.org)
JBind is a data binding framework linking Java and XML. The framework consists of a schema compiler for generating Java sources and a runtime environment. JBind supports most of the W3C XML schema recommendation of 2 May 2001.
OVal is an extensible object validation framework for Java 5 or later. Annotations (@NotNull) or XML configuration files can be used to express class constraints. OVal can optionally use AspectJ to enforce automatic validation (DbC)
Actively Rendered Graphics Framework for Java GUI development. Active Render Java Framework 1.0 License - Common Development and Distribution License
The Presentation-Abstraction-Control framework for Java. It's implements the mediator pattern that helps to broadcast internal applications events through the application and injects dependencies with Google Guice Framework. Java PAC Framework 1.0 License - Apache License V2.0
ALF, The Automated Logging Framework, is a native logging framework for Java with the unique advantage of supporting automated method tracing. This platform-independent library allows developers to debug their applications quickly without adding code
The Generic Analyzer is a framework in Java that is designed to allow users to build, quickly and easily, compilers and interpreters without the need to implement all the complex steps of a translator.