From 36ee6859917be543fb0afaff9420e864689fdc09 Mon Sep 17 00:00:00 2001
From: yuzhang <562713990@qq.com>
Date: Wed, 11 Sep 2019 23:57:42 +0800
Subject: [PATCH] I think there should not import classes in log4j (#1292)

Fixes #1290
---
 .../support/ipresolver/XForwardedRemoteAddressResolver.java   | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

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;