From 05227bda0b09ca582d40c74f1fa94e2b65e6ad98 Mon Sep 17 00:00:00 2001
From: Yoan Thirion <yoan.thirion@gmail.com>
Date: Tue, 26 Dec 2023 09:32:51 +0100
Subject: [PATCH] fix try with resources in day 21

---
 solution/day21/src/main/java/audit/Persister.java | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/solution/day21/src/main/java/audit/Persister.java b/solution/day21/src/main/java/audit/Persister.java
index a188584f..1e609a59 100644
--- a/solution/day21/src/main/java/audit/Persister.java
+++ b/solution/day21/src/main/java/audit/Persister.java
@@ -8,10 +8,11 @@
 
 public class Persister {
     public FileContent[] readDirectory(String directory) throws IOException {
-        return Files.walk(Paths.get(directory))
-                .filter(Files::isRegularFile)
-                .map(Persister::readFile)
-                .toArray(FileContent[]::new);
+        try (var paths = Files.walk(Paths.get(directory))) {
+            return paths.filter(Files::isRegularFile)
+                    .map(Persister::readFile)
+                    .toArray(FileContent[]::new);
+        }
     }
 
     public void applyUpdate(String directory, FileUpdate update) throws IOException {