From 6568c5d64e33b82ffd5d9eac462425f1565b6a2b Mon Sep 17 00:00:00 2001
From: NathanSweet <nathan.sweet@gmail.com>
Date: Wed, 11 Dec 2019 18:00:51 +0100
Subject: [PATCH] Fixed JsonRollback when a skin has no attachments.

---
 .../src/com/esotericsoftware/spine/JsonRollback.java        | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/spine-libgdx/spine-skeletonviewer/src/com/esotericsoftware/spine/JsonRollback.java b/spine-libgdx/spine-skeletonviewer/src/com/esotericsoftware/spine/JsonRollback.java
index 9a4fe0412..5a17e0aac 100644
--- a/spine-libgdx/spine-skeletonviewer/src/com/esotericsoftware/spine/JsonRollback.java
+++ b/spine-libgdx/spine-skeletonviewer/src/com/esotericsoftware/spine/JsonRollback.java
@@ -115,8 +115,10 @@ public class JsonRollback {
 			JsonValue skins = root.get("skins");
 			if (skins != null && skins.isArray()) {
 				JsonValue newSkins = new JsonValue(ValueType.object);
-				for (JsonValue skinMap = skins.child; skinMap != null; skinMap = skinMap.next)
-					newSkins.addChild(skinMap.getString("name"), skinMap.get("attachments"));
+				for (JsonValue skinMap = skins.child; skinMap != null; skinMap = skinMap.next) {
+					JsonValue attachments = skinMap.get("attachments");
+					if (attachments != null) newSkins.addChild(skinMap.getString("name"), skinMap.get("attachments"));
+				}
 				root.remove("skins");
 				root.addChild("skins", newSkins);
 			}