- fixed possible NPE

diff --git a/eu.etaxonomy.taxeditor.editor/src/main/java/eu/etaxonomy/taxeditor/editor/view/descriptive/DescriptiveViewPart.java b/eu.etaxonomy.taxeditor.editor/src/main/java/eu/etaxonomy/taxeditor/editor/view/descriptive/DescriptiveViewPart.java
index eafaa0b0812d5b0cae958e4c9c7b92f00dc2c172..6e2a29d374eb721a990d3626427a9e8d720d564b 100644 (file)
--- a/eu.etaxonomy.taxeditor.editor/src/main/java/eu/etaxonomy/taxeditor/editor/view/descriptive/DescriptiveViewPart.java
+++ b/eu.etaxonomy.taxeditor.editor/src/main/java/eu/etaxonomy/taxeditor/editor/view/descriptive/DescriptiveViewPart.java
@@ -146,7 +146,9 @@ public class DescriptiveViewPart extends AbstractCdmEditorViewPart implements IP
                     }
                 }
                 try {
-                    EditorUtil.open(new DerivateViewEditorInput(specimenUuids));
+                    if(!specimenUuids.isEmpty()){
+                        EditorUtil.open(new DerivateViewEditorInput(specimenUuids));
+                    }
                 } catch (PartInitException e) {
                     MessagingUtils.error(DescriptiveViewPart.class, "Could not open Derivate Editor", e);
                 }