Fix possible widget is disposed exception

diff --git a/eu.etaxonomy.taxeditor.navigation/src/main/java/eu/etaxonomy/taxeditor/navigation/navigator/TaxonNavigator.java b/eu.etaxonomy.taxeditor.navigation/src/main/java/eu/etaxonomy/taxeditor/navigation/navigator/TaxonNavigator.java
index 78007ae5d848b5a344dc562a23ff78c91b6e24f0..bce99d82c2480efe9b5d4b5602135471b4012f6c 100644 (file)
--- a/eu.etaxonomy.taxeditor.navigation/src/main/java/eu/etaxonomy/taxeditor/navigation/navigator/TaxonNavigator.java
+++ b/eu.etaxonomy.taxeditor.navigation/src/main/java/eu/etaxonomy/taxeditor/navigation/navigator/TaxonNavigator.java
@@ -174,7 +174,9 @@ public class TaxonNavigator extends CommonNavigator implements
                            getConversationHolder().commit();
                        }
                }
-               getCommonViewer().refresh();
+               if(!getCommonViewer().getTree().isDisposed()){
+                   getCommonViewer().refresh();
+               }
        }
 
           /**