From ddcfcf82baf737e183ec7b00edeee26894516c58 Mon Sep 17 00:00:00 2001
From: sowgro <tpoke.ferrari@gmail.com>
Date: Thu, 9 Oct 2025 08:06:56 -0400
Subject: fix formatting

---
 src/main/java/design/persistence/JSONPersonalDatabase.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/main/java/design/persistence')

diff --git a/src/main/java/design/persistence/JSONPersonalDatabase.java b/src/main/java/design/persistence/JSONPersonalDatabase.java
index b034680..3975d14 100644
--- a/src/main/java/design/persistence/JSONPersonalDatabase.java
+++ b/src/main/java/design/persistence/JSONPersonalDatabase.java
@@ -76,7 +76,7 @@ public class JSONPersonalDatabase implements PersonalDatabase {
 
     @Override
     public void addGolfer(Golfer golfer) throws IOException {
-        cache.put(golfer.getUsername(), golfer);
+        cache.putIfAbsent(golfer.getUsername(), golfer);
         save();
     }
 
-- 
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