fix: add null check

cuiweixie · cuiweixie · commit a8467be3b25b · 2026-02-21T20:43:59.000+08:00
Signed-off-by: Weixie Cui &lt;cuiweixie@gmail.com&gt;
diff --git a/spring-cloud-gateway-server-webmvc/src/main/java/org/springframework/cloud/gateway/server/mvc/filter/XForwardedRequestHeadersFilter.java b/spring-cloud-gateway-server-webmvc/src/main/java/org/springframework/cloud/gateway/server/mvc/filter/XForwardedRequestHeadersFilter.java
@@ -234,8 +234,12 @@ private String toHostHeader(ServerRequest request) {
 	}
 
 	private String stripTrailingSlash(URI uri) {
-		if (uri.getPath().endsWith("/")) {
-			return uri.getPath().substring(0, uri.getPath().length() - 1);
+		String path = uri.getPath();
+		if (path == null) {
+			return null;
+		}
+		if (path.endsWith("/")) {
+			return path.substring(0, path.length() - 1);
 		}
 		else {
 			return uri.getPath();

Original file line number	Diff line number	Diff line change
`@@ -234,8 +234,12 @@ private String toHostHeader(ServerRequest request) {`
`234`	`234`	`}`
`235`	`235`
`236`	`236`	`private String stripTrailingSlash(URI uri) {`
`237`		`- if (uri.getPath().endsWith("/")) {`
`238`		`- return uri.getPath().substring(0, uri.getPath().length() - 1);`
	`237`	`+ String path = uri.getPath();`
	`238`	`+ if (path == null) {`
	`239`	`+ return null;`
	`240`	`+ }`
	`241`	`+ if (path.endsWith("/")) {`
	`242`	`+ return path.substring(0, path.length() - 1);`
`239`	`243`	`}`
`240`	`244`	`else {`
`241`	`245`	`return uri.getPath();`