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AJHotDraw (swerl.tudelft.nl/view/AMR/AJHotDraw) is an aspect-oriented refactoring of the JHotDraw two-dimensional graphics framework. TestJHotDraw is developed as a test subproject aimed at ensuring behavior conservation between the two solutions.
A small library that provides a powerful and container-less Dependency-Injection mechanism, via AspectJ and Groovy. If you are tired of reams of XML configuration files, managing complex factories and containers, this non-API solution may appeal to you.