Index: server/container/spring/src/main/java/org/apache/james/container/spring/resource/DefaultJamesResourceLoader.java
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
diff --git a/server/container/spring/src/main/java/org/apache/james/container/spring/resource/DefaultJamesResourceLoader.java b/server/container/spring/src/main/java/org/apache/james/container/spring/resource/DefaultJamesResourceLoader.java
--- a/server/container/spring/src/main/java/org/apache/james/container/spring/resource/DefaultJamesResourceLoader.java	(revision 4018827513f62974fb9f71d04dd74fcb15555c70)
+++ b/server/container/spring/src/main/java/org/apache/james/container/spring/resource/DefaultJamesResourceLoader.java	(date 1639119179166)
@@ -43,12 +43,10 @@
 
     @Override
     public void validate(File file) throws IOException {
-        String canonicalPath = file.getCanonicalPath();
-        if (!canonicalPath.startsWith(jamesDirectoriesProvider.getAbsoluteDirectory())
-            && !canonicalPath.startsWith(jamesDirectoriesProvider.getRootDirectory())
-            && !canonicalPath.startsWith(jamesDirectoriesProvider.getVarDirectory())) {
-
-            throw new IOException(canonicalPath + " jail break outside of " + jamesDirectoriesProvider.getRootDirectory());
+        final java.nio.file.Path rootPath = java.nio.file.Path.of(jamesDirectoriesProvider.getRootDirectory()).normalize();
+        final java.nio.file.Path path = file.toPath().normalize();
+        if (!path.startsWith(rootPath)) {
+            throw new IOException(path + " jail break outside of " + rootPath);
         }
     }