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Add efficient existence check to ClassPathResource.isReadable()

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Includes reduced isReadable() check in PathResourceLookupFunction, aligned with PathResourceResolver.

Closes gh-27538
See gh-21372
This commit is contained in:
Juergen Hoeller
2021-10-12 15:13:05 +02:00
parent 1490d27d75
commit b53275f2d2
4 changed files with 26 additions and 6 deletions
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4
spring-webmvc/src/main/java/org/springframework/web/servlet/function/PathResourceLookupFunction.java
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@@ -1,5 +1,5 @@
/*
* Copyright 2002-2020 the original author or authors.
* Copyright 2002-2021 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.
@@ -71,7 +71,7 @@ class PathResourceLookupFunction implements Function<ServerRequest, Optional<Res
try {
Resource resource = this.location.createRelative(path);
if (resource.exists() && resource.isReadable() && isResourceUnderLocation(resource)) {
if (resource.isReadable() && isResourceUnderLocation(resource)) {
return Optional.of(resource);
}
else {