From ffb73e56bb10df80d2d90a6fa833c9d86f826e65 Mon Sep 17 00:00:00 2001
From: Katja Luther <k.luther@bgbm.org>
Date: Mon, 29 Jun 2020 13:48:44 +0200
Subject: [PATCH] avoid widget is disposed exception

---
 .../editor/view/descriptive/e4/FactualDataPartE4.java       | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/eu.etaxonomy.taxeditor.editor/src/main/java/eu/etaxonomy/taxeditor/editor/view/descriptive/e4/FactualDataPartE4.java b/eu.etaxonomy.taxeditor.editor/src/main/java/eu/etaxonomy/taxeditor/editor/view/descriptive/e4/FactualDataPartE4.java
index 723d1668e..ce1e3ec70 100644
--- a/eu.etaxonomy.taxeditor.editor/src/main/java/eu/etaxonomy/taxeditor/editor/view/descriptive/e4/FactualDataPartE4.java
+++ b/eu.etaxonomy.taxeditor.editor/src/main/java/eu/etaxonomy/taxeditor/editor/view/descriptive/e4/FactualDataPartE4.java
@@ -194,13 +194,13 @@ public class FactualDataPartE4 extends AbstractCdmEditorPartE4
         Object[] expandedObjects = null;
         if (!viewer.getControl().isDisposed()){
             expandedObjects = ((TreeViewer)viewer).getExpandedElements();
+        }else{
+            return;
         }
         for(FeatureNodeContainerTree containerTree : featureNodeContainerCache.values()){
             containerTree.buildTree();
         }
-        if (featureNodeContainerCache.isEmpty()){
-//            return;
-        }
+
         viewer.refresh();
         super.changed(object);
         ((TreeViewer) viewer).setExpandedElements(expandedObjects);
-- 
2.34.1