diff --git a/spring-cloud-gateway-core/src/main/java/org/springframework/cloud/gateway/support/ipresolver/XForwardedRemoteAddressResolver.java b/spring-cloud-gateway-core/src/main/java/org/springframework/cloud/gateway/support/ipresolver/XForwardedRemoteAddressResolver.java
index 49945a04..ea5ea2f9 100644
--- a/spring-cloud-gateway-core/src/main/java/org/springframework/cloud/gateway/support/ipresolver/XForwardedRemoteAddressResolver.java
+++ b/spring-cloud-gateway-core/src/main/java/org/springframework/cloud/gateway/support/ipresolver/XForwardedRemoteAddressResolver.java
@@ -21,12 +21,12 @@ import java.util.Arrays;
 import java.util.Collections;
 import java.util.List;
 
-import org.apache.logging.log4j.util.Strings;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import org.springframework.http.server.reactive.ServerHttpRequest;
 import org.springframework.util.Assert;
+import org.springframework.util.StringUtils;
 import org.springframework.web.server.ServerWebExchange;
 
 /**
@@ -129,7 +129,7 @@ public class XForwardedRemoteAddressResolver implements RemoteAddressResolver {
 			return Collections.emptyList();
 		}
 		List<String> values = Arrays.asList(xForwardedValues.get(0).split(", "));
-		if (values.size() == 1 && Strings.isBlank(values.get(0))) {
+		if (values.size() == 1 && !StringUtils.hasText(values.get(0))) {
 			return Collections.emptyList();
 		}
 		return values;
diff --git a/spring-cloud-gateway-core/src/test/java/org/springframework/cloud/gateway/filter/factory/RequestHeaderSizeGatewayFilterFactoryTest.java b/spring-cloud-gateway-core/src/test/java/org/springframework/cloud/gateway/filter/factory/RequestHeaderSizeGatewayFilterFactoryTest.java
index d0c48368..998734ba 100644
--- a/spring-cloud-gateway-core/src/test/java/org/springframework/cloud/gateway/filter/factory/RequestHeaderSizeGatewayFilterFactoryTest.java
+++ b/spring-cloud-gateway-core/src/test/java/org/springframework/cloud/gateway/filter/factory/RequestHeaderSizeGatewayFilterFactoryTest.java
@@ -49,7 +49,7 @@ import static org.springframework.boot.test.context.SpringBootTest.WebEnvironmen
 public class RequestHeaderSizeGatewayFilterFactoryTest extends BaseWebClientTests {
 
 	private static final String responseMesssage = "Request Header/s size is larger than "
-			+ "permissible limit. Request Header/s size is \\d*B where permissible limit is 46B";
+			+ "permissible limit. Request Header/s size is \\d*B where permissible limit is \\d*B";
 
 	@Test
 	public void setRequestSizeFilterWorks() {