Added null check to StreamingTransferableGraphImportProcess

refs #7240
Change-Id: I5724ddfff4eae6c17dcd92eff71e25fb80bc8cf6

diff --git a/bundles/org.simantics.graph.db/src/org/simantics/graph/db/StreamingTransferableGraphImportProcess.java b/bundles/org.simantics.graph.db/src/org/simantics/graph/db/StreamingTransferableGraphImportProcess.java
index 93131413fddf25a4728918c92c09922b50ebf85b..886e47b12fa7e95a8e3ff89e7fab5f048df93d0c 100644 (file)
--- a/bundles/org.simantics.graph.db/src/org/simantics/graph/db/StreamingTransferableGraphImportProcess.java
+++ b/bundles/org.simantics.graph.db/src/org/simantics/graph/db/StreamingTransferableGraphImportProcess.java
@@ -340,7 +340,7 @@ public class StreamingTransferableGraphImportProcess implements TransferableGrap
                ClusteringSupport support = graph.getService(ClusteringSupport.class);
                if(id == Extensions.ROOT_LIBRARY_CLUSTER_SET || id == Extensions.INDEX_ROOT_CLUSTER_SET) return;
                Resource indexRootClusterSetResource = rootLibrary;
-               if(support.isClusterSet(indexRoot)) {
+               if(indexRoot != null && support.isClusterSet(indexRoot)) {
                        indexRootClusterSetResource = indexRoot;
                } else {
                        graph.setClusterSet4NewResource(rootLibrary);