From d653e18ac5b42f171c0bc1a735227d48d96c50be Mon Sep 17 00:00:00 2001
From: Jean-Marie Burel <j.burel@dundee.ac.uk>
Date: Mon, 7 Aug 2023 21:19:52 +0100
Subject: [PATCH] handle case when no object is selected

---
 .../agents/imviewer/util/proj/ProjSavingDialog.java      | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/main/java/org/openmicroscopy/shoola/agents/imviewer/util/proj/ProjSavingDialog.java b/src/main/java/org/openmicroscopy/shoola/agents/imviewer/util/proj/ProjSavingDialog.java
index 3d7cbc128..e9c0d2e7a 100644
--- a/src/main/java/org/openmicroscopy/shoola/agents/imviewer/util/proj/ProjSavingDialog.java
+++ b/src/main/java/org/openmicroscopy/shoola/agents/imviewer/util/proj/ProjSavingDialog.java
@@ -201,10 +201,15 @@ private void setProperties()
 	private void populateDatasetsBox(DataNode newDataset)
 	{
 		DataNode n = (DataNode) parentsBox.getSelectedItem();
-		List<DataNode> list = n.getUIDatasetNodes();
+		List<DataNode> list = null;
+		if (n != null) {
+			list = n.getUIDatasetNodes();
+		}
 		List<DataNode> l = new ArrayList<DataNode>();
 		if (newDataset != null) l.add(newDataset);
-		l.addAll(sorter.sort(list));
+		if (list != null) {
+			l.addAll(sorter.sort(list));
+		}
 		datasetsBox.setVisible(l.size() > 0);
 		datasetsBox.removeItemListener(datasetsBoxListener);
 		datasetsBox.removeAllItems();