X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.graph.db%2Fsrc%2Forg%2Fsimantics%2Fgraph%2Fdb%2FStreamingTransferableGraphImportProcess.java;h=886e47b12fa7e95a8e3ff89e7fab5f048df93d0c;hb=529dfdc68f934387c96b2c2825ffa747320538b5;hp=93131413fddf25a4728918c92c09922b50ebf85b;hpb=16dc98373e1623f4254d3eed2e4034271539b2ce;p=simantics%2Fplatform.git

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 93131413f..886e47b12 100644
--- 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);