diff --git a/mybatis-flex-core/src/main/java/com/mybatisflex/core/util/FieldWrapper.java b/mybatis-flex-core/src/main/java/com/mybatisflex/core/util/FieldWrapper.java
index 15ff3bce..755fe198 100644
--- a/mybatis-flex-core/src/main/java/com/mybatisflex/core/util/FieldWrapper.java
+++ b/mybatis-flex-core/src/main/java/com/mybatisflex/core/util/FieldWrapper.java
@@ -53,14 +53,14 @@ public class FieldWrapper {
                 if (fieldWrapper == null) {
                     Field findField = ClassUtil.getFirstField(clazz, field -> field.getName().equals(fieldName));
                     if (findField == null) {
-                        throw new IllegalStateException("Can not find field \"" + fieldName + "\" in class: " + clazz);
+                        throw new IllegalStateException("Can not find field \"" + fieldName + "\" in class: " + clazz.getName());
                     }
 
                     String setterName = "set" + StringUtil.firstCharToUpperCase(fieldName);
                     Method setter = ClassUtil.getFirstMethod(clazz, method ->
-                            method.getParameterCount() == 1
-                                    && Modifier.isPublic(method.getModifiers())
-                                    && method.getName().equals(setterName));
+                        method.getParameterCount() == 1
+                            && Modifier.isPublic(method.getModifiers())
+                            && method.getName().equals(setterName));
 
                     fieldWrapper = new FieldWrapper();
                     fieldWrapper.field = findField;
@@ -76,8 +76,8 @@ public class FieldWrapper {
 
                     String[] getterNames = new String[]{"get" + StringUtil.firstCharToUpperCase(fieldName), "is" + StringUtil.firstCharToUpperCase(fieldName)};
                     fieldWrapper.getterMethod = ClassUtil.getFirstMethod(clazz, method -> method.getParameterCount() == 0
-                            && Modifier.isPublic(method.getModifiers())
-                            && ArrayUtil.contains(getterNames, method.getName()));
+                        && Modifier.isPublic(method.getModifiers())
+                        && ArrayUtil.contains(getterNames, method.getName()));
 
                     wrapperMap.put(fieldName, fieldWrapper);
                 }
@@ -117,7 +117,7 @@ public class FieldWrapper {
     public void set(Object value, Object to) {
         try {
             if (setterMethod == null) {
-                throw new IllegalStateException("Can not find method \"set" + StringUtil.firstCharToUpperCase(field.getName()) + "\" in class: " + to.getClass());
+                throw new IllegalStateException("Can not find method \"set" + StringUtil.firstCharToUpperCase(field.getName()) + "\" in class: " + to.getClass().getName());
             }
             setterMethod.invoke(to, value);
         } catch (Exception e) {
@@ -128,7 +128,8 @@ public class FieldWrapper {
     public Object get(Object target) {
         try {
             if (getterMethod == null) {
-                throw new IllegalStateException("Can not find method \"get" + StringUtil.firstCharToUpperCase(field.getName()) + ", is" + StringUtil.firstCharToUpperCase(field.getName()) + "\" in class: " + target.getClass());
+                throw new IllegalStateException("Can not find method \"get" + StringUtil.firstCharToUpperCase(field.getName()) + ", is"
+                    + StringUtil.firstCharToUpperCase(field.getName()) + "\" in class: " + target.getClass().getName());
             }
             return getterMethod.invoke(target);
         } catch (Exception e) {
@@ -155,4 +156,4 @@ public class FieldWrapper {
     public boolean isIgnore() {
         return isIgnore;
     }
-}
\ No newline at end of file
+}