Refine location checks for PathResource

This commit ensures that checks for PathResource locations are skipped
because this resource implementation will always resolve under the
current location.

Closes gh-34167

Author: bclozel

spring-webflux/src/main/java/org/springframework/web/reactive/resource/ResourceHandlerUtils.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2024 the original author or authors.
+ * Copyright 2002-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -24,6 +24,7 @@
 import org.apache.commons.logging.LogFactory;
 
 import org.springframework.core.io.ClassPathResource;
+import org.springframework.core.io.PathResource;
 import org.springframework.core.io.Resource;
 import org.springframework.core.io.UrlResource;
 import org.springframework.core.log.LogFormatUtils;
@@ -56,7 +57,10 @@ public static void assertResourceLocation(@Nullable Resource location) {
 		Assert.notNull(location, "Resource location must not be null");
 		try {
 			String path;
-			if (location instanceof UrlResource) {
+			if (location instanceof PathResource) {
+				return;
+			}
+			else if (location instanceof UrlResource) {
 				path = location.getURL().toExternalForm();
 			}
 			else if (location instanceof ClassPathResource classPathResource) {

spring-webmvc/src/main/java/org/springframework/web/servlet/resource/ResourceHandlerUtils.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2024 the original author or authors.
+ * Copyright 2002-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -24,6 +24,7 @@
 import org.apache.commons.logging.LogFactory;
 
 import org.springframework.core.io.ClassPathResource;
+import org.springframework.core.io.PathResource;
 import org.springframework.core.io.Resource;
 import org.springframework.core.io.UrlResource;
 import org.springframework.core.log.LogFormatUtils;
@@ -57,7 +58,10 @@ public static void assertResourceLocation(@Nullable Resource location) {
 		Assert.notNull(location, "Resource location must not be null");
 		try {
 			String path;
-			if (location instanceof UrlResource) {
+			if (location instanceof PathResource) {
+				return;
+			}
+			else if (location instanceof UrlResource) {
 				path = location.getURL().toExternalForm();
 			}
 			else if (location instanceof ClassPathResource classPathResource) {