diff --git a/src/main/java/org/apache/ibatis/reflection/Reflector.java b/src/main/java/org/apache/ibatis/reflection/Reflector.java
index ee7dd1a6323..c8d75ed1112 100644
--- a/src/main/java/org/apache/ibatis/reflection/Reflector.java
+++ b/src/main/java/org/apache/ibatis/reflection/Reflector.java
@@ -64,8 +64,9 @@ public class Reflector {
   public Reflector(Class<?> clazz) {
     type = clazz;
     addDefaultConstructor(clazz);
-    addGetMethods(clazz);
-    addSetMethods(clazz);
+    Method[] classMethods = getClassMethods(clazz);
+    addGetMethods(classMethods);
+    addSetMethods(classMethods);
     addFields(clazz);
     readablePropertyNames = getMethods.keySet().toArray(new String[0]);
     writablePropertyNames = setMethods.keySet().toArray(new String[0]);
@@ -83,9 +84,8 @@ private void addDefaultConstructor(Class<?> clazz) {
       .findAny().ifPresent(constructor -> this.defaultConstructor = constructor);
   }
 
-  private void addGetMethods(Class<?> clazz) {
+  private void addGetMethods(Method[] methods) {
     Map<String, List<Method>> conflictingGetters = new HashMap<>();
-    Method[] methods = getClassMethods(clazz);
     Arrays.stream(methods).filter(m -> m.getParameterTypes().length == 0 && PropertyNamer.isGetter(m.getName()))
       .forEach(m -> addMethodConflict(conflictingGetters, PropertyNamer.methodToProperty(m.getName()), m));
     resolveGetterConflicts(conflictingGetters);
@@ -134,9 +134,8 @@ private void addGetMethod(String name, Method method, boolean isAmbiguous) {
     getTypes.put(name, typeToClass(returnType));
   }
 
-  private void addSetMethods(Class<?> clazz) {
+  private void addSetMethods(Method[] methods) {
     Map<String, List<Method>> conflictingSetters = new HashMap<>();
-    Method[] methods = getClassMethods(clazz);
     Arrays.stream(methods).filter(m -> m.getParameterTypes().length == 1 && PropertyNamer.isSetter(m.getName()))
       .forEach(m -> addMethodConflict(conflictingSetters, PropertyNamer.methodToProperty(m.getName()), m));
     resolveSetterConflicts(conflictingSetters);