Java JR: Fully Abstract Trace Semantics for a Core Java Language

Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3444)


We introduce an expressive yet semantically clean core Java-like language, Java JR, and provide it with a formal operational semantics based on traces of observable actions which represent interaction across package boundaries. A detailed example based on the Observer Pattern is used to demonstrate the intuitive character of the semantic model. We also show that our semantic trace equivalence is fully-abstract with respect to a natural notion of testing equivalence for object systems. This is the first such result for a full class-based OO-language with inheritance.


Operational Semantic Label Transition System Semantic Description Trace Model Evaluation Context 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  1. 1.Bell LabsLucent TechnologiesChicagoUSA
  2. 2.DePaul UniversityChicagoUSA
  3. 3.University of SussexBrightonUK

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