From aaeff9a25ef6a916067dd10d21ee2df2eeb8f16e Mon Sep 17 00:00:00 2001
From: modmuss50 <modmuss50@gmail.com>
Date: Thu, 15 Feb 2024 12:27:18 +0000
Subject: [PATCH] Fix possible NPE in MappingIoConverter

---
 build.gradle                                                 | 2 +-
 .../enigma/translation/mapping/serde/MappingIoConverter.java | 5 ++++-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/build.gradle b/build.gradle
index 8c2461bf..81412dfc 100644
--- a/build.gradle
+++ b/build.gradle
@@ -26,7 +26,7 @@ subprojects {
 	}
 
 	group = 'cuchaz'
-	version = '2.4.0'
+	version = '2.4.1'
 
 	version = version + (System.getenv("GITHUB_ACTIONS") ? "" : "+local")
 
diff --git a/enigma/src/main/java/cuchaz/enigma/translation/mapping/serde/MappingIoConverter.java b/enigma/src/main/java/cuchaz/enigma/translation/mapping/serde/MappingIoConverter.java
index 3843d8e4..b7696d2d 100644
--- a/enigma/src/main/java/cuchaz/enigma/translation/mapping/serde/MappingIoConverter.java
+++ b/enigma/src/main/java/cuchaz/enigma/translation/mapping/serde/MappingIoConverter.java
@@ -71,7 +71,10 @@ private static void writeClass(EntryTreeNode<EntryMapping> classNode, EntryMap<E
 		Deque<String> parts = new LinkedList<>();
 
 		newMappingTree.visitClass(classEntry.getFullName());
-		newMappingTree.visitComment(MappedElementKind.CLASS, mapping.javadoc());
+
+		if (mapping != null) {
+			newMappingTree.visitComment(MappedElementKind.CLASS, mapping.javadoc());
+		}
 
 		do {
 			mapping = oldMappingTree.get(classEntry);