See also:

• Computers: Programming: Methodologies: Aspect+Oriented  (41)

• abc: the AspectBench Compiler for AspectJ - The distribution of an optimising, extensible compiler for AspectJ, freely available under the LGPL. The abc project is a joint effort between the University of Oxford (UK), McGill University (Canada), and the University of Aarhus (Denmark). [Open source, LGPL]
• ASM - Very small and fast Java bytecode manipulation framework; can be used to dynamically generate stub classes or other proxy classes, directly in binary form, or to dynamically modify classes at load time, just before loaded into a JVM. [Open Source, BSD]
• Aspect Browser - A tool for Java (with optional Emacs support) which helps developers to find and visualise crosscutting concerns, using text matching. [Freeware]
• AspectJ - Aspect+oriented Java extension, seamless, from Xerox PARC. Goal: to make aspect+oriented programming (AOP) technology available to a wide range of programmers. [Open Source, MPL]
• AspectWerkz - Dynamic, lightweight and high+performing AOP framework for Java; uses bytecode modification to weave classes at project build+, class+load+, or run+time. [Open Source, LGPL]
• Concerning AOP and Inheritance - Paper that introduces the Java+based language Sally and compares it with AspectJ: interactions as opposed to method entry, named advice, advice overriding. Also compares aspects, conventional inheritance, and mixins. [PDF]
• DemeterJ - An adaptive programming language based on Java. The "big sister" of DJ.
• DJ - Support for adaptive programming (dynamic structure+shy traversals and visitors) in pure Java.
• EAOP tool - A research prototype for Event+based Aspect+Oriented Programming (EAOP) for Java.
• HyperJ [IBM] - A Java tool supporting advanced Multi+Dimensional Separation of Concerns. [Freeware]
• JAsCo - Advanced Java+based aspect+oriented programming (AOP or AOSD) language originally tailored for the component+based field. Main traits: highly reusable aspects, strong aspectual composition mechanism to manage combinations of aspects.
• Macker - Helps enforce architectural rules (layering, tiering, and modularity) in Java code. It applies pattern+based access rules from XML rules files to compiled classes. [Open source, GPL]
• PROSE - PROgrammable extenSions of sErvices; allows modifying Java programs at run+time; dynamic aspect+oriented programming (AOP), adaptive service architectures, and information systems for mobile computing.
• Sally - A general+purpose aspect language (GPAL) based on Java, with aspect reflection.

• AspectJ, 0.8b5: Real+world AOP tool simplifies OO development - Detailed review of the aspect+oriented Java extension AspectJ 0.8, by Rich Price, a senior staff engineer at CheckFree Corp. (September, 2001)