diff --git a/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/adapter/AffectedConfigurationPropertiesRebinder.java b/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/adapter/AffectedConfigurationPropertiesRebinder.java
index 2c0f34905..711df1483 100644
--- a/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/adapter/AffectedConfigurationPropertiesRebinder.java
+++ b/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/adapter/AffectedConfigurationPropertiesRebinder.java
@@ -26,6 +26,7 @@ import java.util.Objects;
 import java.util.Set;
 import java.util.concurrent.ConcurrentHashMap;
 
+import com.tencent.cloud.common.util.ReflectionUtils;
 import com.tencent.polaris.api.utils.MapUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -37,13 +38,9 @@ import org.springframework.cloud.context.properties.ConfigurationPropertiesBeans
 import org.springframework.cloud.context.properties.ConfigurationPropertiesRebinder;
 import org.springframework.context.ApplicationContext;
 import org.springframework.core.annotation.AnnotationUtils;
-import org.springframework.util.ClassUtils;
 import org.springframework.util.CollectionUtils;
-import org.springframework.util.ReflectionUtils;
 import org.springframework.util.StringUtils;
 
-import static java.util.Locale.ENGLISH;
-
 /**
  * Optimize {@link ConfigurationPropertiesRebinder}, only rebuild affected beans.
  *
@@ -58,8 +55,6 @@ public class AffectedConfigurationPropertiesRebinder extends ConfigurationProper
 
 	private final Map<String, Map<String, Object>> propertiesBeanDefaultValues = new ConcurrentHashMap<>();
 
-	private final String SET_PREFIX = "set";
-
 	public AffectedConfigurationPropertiesRebinder(ConfigurationPropertiesBeans beans) {
 		super(beans);
 	}
@@ -115,9 +110,10 @@ public class AffectedConfigurationPropertiesRebinder extends ConfigurationProper
 
 			Object bean = applicationContext.getBean(beanName);
 			Field field = ReflectionUtils.findField(bean.getClass(), fieldName);
-			assert field != null;
-			field.setAccessible(true);
-			field.set(bean, defaultValues.get(fieldName));
+			if (field != null) {
+				field.setAccessible(true);
+				field.set(bean, defaultValues.get(fieldName));
+			}
 		}
 		catch (Exception e) {
 			LOGGER.error("[SCT Config] rebind default value error, bean = {}, key = {}", beanName, key);
@@ -142,8 +138,7 @@ public class AffectedConfigurationPropertiesRebinder extends ConfigurationProper
 					}
 				}, field -> {
 					int modifiers = field.getModifiers();
-					String setMethodName = SET_PREFIX + capitalize(field.getName());
-					return !Modifier.isFinal(modifiers) && !Modifier.isStatic(modifiers) && ClassUtils.hasMethod(field.getDeclaringClass(), setMethodName, field.getType());
+					return !Modifier.isFinal(modifiers) && !Modifier.isStatic(modifiers) && ReflectionUtils.writableBeanField(field);
 				});
 			}
 			catch (Exception ignored) {
@@ -152,11 +147,4 @@ public class AffectedConfigurationPropertiesRebinder extends ConfigurationProper
 			propertiesBeanDefaultValues.put(propertiesBean.getName(), defaultValues);
 		}
 	}
-
-	private String capitalize(String name) {
-		if (name == null || name.length() == 0) {
-			return name;
-		}
-		return name.substring(0, 1).toUpperCase(ENGLISH) + name.substring(1);
-	}
 }
diff --git a/spring-cloud-tencent-commons/src/main/java/com/tencent/cloud/common/util/ReflectionUtils.java b/spring-cloud-tencent-commons/src/main/java/com/tencent/cloud/common/util/ReflectionUtils.java
index ef706673f..bc2e20c9d 100644
--- a/spring-cloud-tencent-commons/src/main/java/com/tencent/cloud/common/util/ReflectionUtils.java
+++ b/spring-cloud-tencent-commons/src/main/java/com/tencent/cloud/common/util/ReflectionUtils.java
@@ -19,16 +19,34 @@ package com.tencent.cloud.common.util;
 
 import java.lang.reflect.Field;
 
+import org.springframework.util.ClassUtils;
+
+import static java.util.Locale.ENGLISH;
+
 /**
  * Reflection Utils.
  *
  * @author Haotian Zhang
  */
-public final class ReflectionUtils {
+public final class ReflectionUtils extends org.springframework.util.ReflectionUtils {
 
+	private final static String SET_PREFIX = "set";
 	private ReflectionUtils() {
 	}
 
+	public static boolean writableBeanField(Field field) {
+		String fieldName = field.getName();
+		String setMethodName = SET_PREFIX + capitalize(fieldName);
+		return ClassUtils.hasMethod(field.getDeclaringClass(), setMethodName, field.getType());
+	}
+
+	public static String capitalize(String name) {
+		if (name == null || name.length() == 0) {
+			return name;
+		}
+		return name.substring(0, 1).toUpperCase(ENGLISH) + name.substring(1);
+	}
+
 	public static Object getFieldValue(Object instance, String fieldName) {
 		Field field = org.springframework.util.ReflectionUtils.findField(instance.getClass(), fieldName);
 		if (field == null) {
diff --git a/spring-cloud-tencent-examples/polaris-config-example/src/main/java/com/tencent/cloud/polaris/config/example/Person.java b/spring-cloud-tencent-examples/polaris-config-example/src/main/java/com/tencent/cloud/polaris/config/example/Person.java
index 1a88235de..3b3348ea4 100644
--- a/spring-cloud-tencent-examples/polaris-config-example/src/main/java/com/tencent/cloud/polaris/config/example/Person.java
+++ b/spring-cloud-tencent-examples/polaris-config-example/src/main/java/com/tencent/cloud/polaris/config/example/Person.java
@@ -34,6 +34,8 @@ public class Person {
 
 	private int age;
 
+	private boolean isDirector;
+
 	public String getName() {
 		return name;
 	}
@@ -50,8 +52,17 @@ public class Person {
 		this.age = age;
 	}
 
+
+	public boolean isDirector() {
+		return isDirector;
+	}
+
+	public void setIsDirector(boolean isDirector) {
+		this.isDirector = isDirector;
+	}
+
 	@Override
 	public String toString() {
-		return "User{" + "name='" + name + '\'' + ", age=" + age + '}';
+		return "User{" + "name='" + name + '\'' + ", age=" + age  + ", isDirector=" + isDirector +  '\'' + '}';
 	}
 }