From 97f45f78111b6506275634e53b7055a6704bd047 Mon Sep 17 00:00:00 2001
From: Pouryafard75 <pouryafard75@gmail.com>
Date: Thu, 2 Jan 2025 15:02:34 -0500
Subject: [PATCH] ASTDiff: Fixes
 https://github.com/tsantalis/RefactoringMiner/issues/839

---
 .../astDiff/models/ExtendedMultiMappingStore.java        | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/main/java/org/refactoringminer/astDiff/models/ExtendedMultiMappingStore.java b/src/main/java/org/refactoringminer/astDiff/models/ExtendedMultiMappingStore.java
index 0e52beca14..be42ff3949 100644
--- a/src/main/java/org/refactoringminer/astDiff/models/ExtendedMultiMappingStore.java
+++ b/src/main/java/org/refactoringminer/astDiff/models/ExtendedMultiMappingStore.java
@@ -200,7 +200,14 @@ public void add(MappingStore match) {
 		}
 	}
 
-	public void addWithMaps(MappingStore match,Map<Tree,Tree> srcCopy, Map<Tree,Tree> dstCopy) {
+	@Override
+	public void addMapping(Tree src, Tree dst) {
+		if (src == null || dst == null)
+			return;
+		super.addMapping(src, dst);
+	}
+
+	public void addWithMaps(MappingStore match, Map<Tree,Tree> srcCopy, Map<Tree,Tree> dstCopy) {
 		for (Mapping mapping : match) {
 			Tree realSrc = srcCopy.get(mapping.first);
 			Tree realDst = dstCopy.get(mapping.second);