Fix errors with procedural user components for computational values

[simantics/platform.git] / bundles / org.simantics.db.layer0 / src / org / simantics / db / layer0 / util / RuntimeEnvironmentRequest2.java

diff --git a/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/util/RuntimeEnvironmentRequest2.java b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/util/RuntimeEnvironmentRequest2.java
index ca8bc07cd53ab9a3b73d05a02e73d7473ae7db2a..c51428f2f8087758621d9396e6d6bad5f3cbd138 100644 (file)
--- a/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/util/RuntimeEnvironmentRequest2.java
+++ b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/util/RuntimeEnvironmentRequest2.java
@@ -113,9 +113,14 @@ public class RuntimeEnvironmentRequest2 extends BinaryRead<Resource, Resource, R
         fillEnvironmentSpecification(environmentSpecification);
 
         Layer0 L0 = Layer0.getInstance(graph);
-        Collection<Resource> sclModules = graph.syncRequest(new ObjectsWithType(parameter, L0.ConsistsOf, L0.SCLModule));
-        for (Resource sclModule : sclModules)
-            environmentSpecification.importModule(graph.getURI(sclModule), "");
+        if (parameter != null) {
+            Collection<Resource> sclModules = graph.syncRequest(new ObjectsWithType(parameter, L0.ConsistsOf, L0.SCLModule));
+            for (Resource sclModule : sclModules) {
+                environmentSpecification.importModule(graph.getURI(sclModule), "");
+            }
+        } else {
+            // `parameter` is optional and can be null for e.g. procedural user components
+        }
 
         Resource mainModule = Layer0Utils.getPossibleChild(graph, parameter2, "SCLMain");
         if(mainModule != null)