From a1cc82b6e0c69b766548ea9414da6ac32d55775c Mon Sep 17 00:00:00 2001
From: rensink <arend.rensink@utwente.nl>
Date: Tue, 25 Jun 2024 09:45:43 +0200
Subject: [PATCH] Bug fix

https://github.com/nl-utwente-groove/nl-utwente-groove.github.io/issues/3
---
 src/main/java/nl/utwente/groove/grammar/aspect/AspectGraph.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/java/nl/utwente/groove/grammar/aspect/AspectGraph.java b/src/main/java/nl/utwente/groove/grammar/aspect/AspectGraph.java
index e91faf3d6..05af90f13 100644
--- a/src/main/java/nl/utwente/groove/grammar/aspect/AspectGraph.java
+++ b/src/main/java/nl/utwente/groove/grammar/aspect/AspectGraph.java
@@ -597,7 +597,7 @@ private SortMap createSortMap() {
                 if (e.label().hasRole(EdgeRole.NODE_TYPE) && e.source().hasId()) {
                     String id = e.source().getId();
                     var typeLabel = e.getRuleLabel().getTypeLabel();
-                    if (typeLabel != null) {
+                    if (typeLabel != null && typeSortMap.containsKey(typeLabel)) {
                         for (var se : typeSortMap.get(typeLabel).entrySet()) {
                             var fieldName = new QualName(id, se.getKey());
                             result.add(fieldName, se.getValue());