GOODS to appear on the stage -- Balloon types: Controlling sharing of state in data types -- Static integrity constraint management in object-oriented database programming languages via predicate transformers -- Issues with exception handling in object-oriented systems -- Subtyping is not a good “match” for object-oriented languages -- Near optimal hierarchical encoding of types -- An extended Theory of Primitive Objects: First order system -- A reflective architecture for process control applications -- Dynamic object evolution without name collisions -- Aspect-oriented programming -- DRASTIC: A run-time architecture for evolving, distributed, persistent systems -- A general framework for inheritance management and method dispatch in object-oriented languages -- Optimizing Smalltalk by selector code indexing can be practical -- Objects, associations and subsystems: A hierarchical approach to encapsulation -- Towards a formalization of the Unified Modeling Language -- Coordination requirements expressed in types for active objects -- Java is type safe — Probably -- Feature-oriented programming: A fresh look at objects -- Genericity in java with virtual types -- Tool support for object-oriented patterns -- A model for structuring user documentation of object-oriented frameworks using patterns and hypertext -- Using patterns for design and documentation -- Going beyond objects with design patterns.

This book constitutes the strictly refereed proceedings of the 11th European Conference on Object-Oriented Programming, ECOOP'97, held in Jyväskylä, Finland, in June 1997. The book presents 20 revised full papers selected from a total of 103 submissions; also included are two full invited presentations and one abstract of an invited talk. The book is divided into topical sections on programming languages, types, metaprogramming, implementation and systems, formal methods and specifications, Java, and patterns. All in all, the volume impressively demonstrates that object-oriented technology has grown from a limited academic exercise to an industrial driving force.