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Aspect-oriented programming languages provide new composition mechanisms for improving the modularity of crosscutting concerns. Implementations of such language support use advanced program representations, like abstract syntax trees or stack traces, to enable an indirect specification (pointcut) of executions of program elements at which aspect code (advice) is invoked. During the evolution of a program, this representations will change and, hence, advice may not be executed as intended by the developer. In this paper, the authors present a tool-supported refactoring approach that addresses this evolution problem by automating the detection of change effects on pointcuts and the generation of pointcut updates.
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