List<Class<?>> classes = StaticAnalyzer.analyze("source_code_folder"); List<Method> methods = new ArrayList<>(); for (Class<?> clazz : classes) { methods.addAll(clazz.getDeclaredMethods()); } MappingRule rule1 = new MappingRule("source_code_class", "target_code_class"); MappingRule rule2 = new MappingRule("source_code_method", "target_code_method(argument)"); MappingConfig config = new MappingConfig(); config.addRule(rule1); config.addRule(rule2); CodeMapper mapper = new CodeMapper(config); for (Method method : methods) { mapper.map(method); } String generatedCode = mapper.generate(); FileUtils.writeToFile("target_code_folder/TargetCode.java", generatedCode);