feat: initialize 메서드 분리해서, default_controller를 덮어씌을 수 있도록 리팩터링

mvc/src/main/java/webmvc/org/springframework/web/servlet/mvc/tobe/handler_mapping/AnnotationHandlerMapping.java

@@ -18,8 +18,8 @@
 import web.org.springframework.web.bind.annotation.RequestMapping;
 import web.org.springframework.web.bind.annotation.RequestMethod;
 import webmvc.org.springframework.web.servlet.exception.RequestMethodNotValidException;
-import webmvc.org.springframework.web.servlet.mvc.tobe.handler.Handler;
 import webmvc.org.springframework.web.servlet.mvc.tobe.default_controller.ForwardController;
+import webmvc.org.springframework.web.servlet.mvc.tobe.handler.Handler;
 
 public class AnnotationHandlerMapping implements HandlerMapping {
 
@@ -31,14 +31,19 @@ public class AnnotationHandlerMapping implements HandlerMapping {
     private final Map<HandlerKey, HandlerExecution> handlerExecutions;
 
     public AnnotationHandlerMapping(final Object... basePackage) {
-        this.basePackage = Stream.of(basePackage, DEFAULT_CONTROLLER_PACKAGE).toArray();
+        this.basePackage = basePackage;
         this.handlerExecutions = new HashMap<>();
+        initializeByPackages(DEFAULT_CONTROLLER_PACKAGE);
     }
 
     @Override
     public void initialize() {
         log.info("Initialized AnnotationHandlerMapping!");
 
+        initializeByPackages(basePackage);
+    }
+
+    private void initializeByPackages(final Object... basePackage) {
         final Set<Class<?>> controllerClazz = new Reflections(basePackage)
             .getTypesAnnotatedWith(Controller.class);
         final Map<HandlerKey, HandlerExecution> handlerExecutions = controllerClazz