From f07d5a74a8d474820a50e2c478539ee0f1ffd6f9 Mon Sep 17 00:00:00 2001
From: SamyaDaleh <samya.daleh@freenet.de>
Date: Sun, 18 Feb 2024 16:34:06 +0100
Subject: [PATCH] add default constructor (for Jackson serialization)

---
 .../github/samyadaleh/cltoolbox/chartparsing/item/Pair.java  | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/main/java/com/github/samyadaleh/cltoolbox/chartparsing/item/Pair.java b/src/main/java/com/github/samyadaleh/cltoolbox/chartparsing/item/Pair.java
index 0777a7e..09547ed 100644
--- a/src/main/java/com/github/samyadaleh/cltoolbox/chartparsing/item/Pair.java
+++ b/src/main/java/com/github/samyadaleh/cltoolbox/chartparsing/item/Pair.java
@@ -4,6 +4,11 @@ public class Pair<K, V> {
 
   private final K key;
   private final V value;
+  
+  public Pair(){
+    key = null;
+    value = null;
+  }
 
   public Pair(K key, V value) {
     this.key = key;