CodART

What CodART is

CodART is a toolkit for automated refactoring and multi-objective optimization of Java source code. It documents 47 refactoring operations, including Extract Class, Move Method, and Encapsulate Field, and supports project-level and batch refactoring. Its optimization uses NSGA-II and NSGA-III across eight QMOOD quality metrics. CodART also includes PPO-based generation of refactoring sequences and models that predict testability from source code metrics. For code quality, it integrates PMD with custom rulesets for detecting code smells, and uses SciTools Understand for parsing and metric computation. The documented interfaces include a React web interface and a FastAPI REST API; Docker Compose instructions cover running its services locally. CodART supports Java and is available under an MIT License, whose terms permit use, copying, modification, distribution, sublicensing, and sale subject to its conditions. However, the documented setup requires a separate SciTools Understand professional license, with academic licenses available for research purposes. The quick-start specifies at least 8 GB RAM and 4 CPU cores, with 12 GB or more recommended for large projects.