From 04fe0aa3b6175dbf6a0e75b7e8d7923200429872 Mon Sep 17 00:00:00 2001
From: Gary Gregory <garydgregory@gmail.com>
Date: Sun, 23 Jun 2024 16:27:16 -0400
Subject: [PATCH] Javadoc

---
 .../collections4/bidimap/DualLinkedHashBidiMap.java        | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/main/java/org/apache/commons/collections4/bidimap/DualLinkedHashBidiMap.java b/src/main/java/org/apache/commons/collections4/bidimap/DualLinkedHashBidiMap.java
index 20143bfe4..1eb6eb769 100644
--- a/src/main/java/org/apache/commons/collections4/bidimap/DualLinkedHashBidiMap.java
+++ b/src/main/java/org/apache/commons/collections4/bidimap/DualLinkedHashBidiMap.java
@@ -102,7 +102,12 @@ public class DualLinkedHashBidiMap<K, V> extends AbstractDualBidiMap<K, V> imple
         putAll(map);
     }
 
-    // Serialization
+    /**
+     * Serializes this object to an ObjectOutputStream.
+     *
+     * @param out the target ObjectOutputStream.
+     * @throws IOException thrown when an I/O errors occur writing to the target stream.
+     */
     private void writeObject(final ObjectOutputStream out) throws IOException {
         out.defaultWriteObject();
         out.writeObject(normalMap);