Title: Code Smell Detection in Eclipse

Refactoring is a software engineering technique that, by applying a series of small behavior-preserving transformations, can improve a software system’s design, readability and extensibility. Code smells are signs that indicate that source code might need refactoring. The goal of this thesis project was to develop a prototype of a code smell detection plug-in for the Eclipse IDE framework. In earlier research by Van Emden and Moonen, a tool was developed to detect code smells in Java source code and visualize them in graph views. CodeNose, the plug-in prototype created in this thesis project, presents code smells in the Tasks View in Eclipse, similar to the way compiler errors and warnings are presented. These code smell reports provide feedback about the quality of a software system. CodeNose uses the Eclipse JDT parser to build abstract syntax trees that represent the source code. A tree visitor detects primitive code smells and collects derived smell aspects, which are written to a fact database an