Index: /applications/editors/josm/plugins/wikipedia/test/unit/org/wikipedia/WikidataTagCellRendererTest.java
===================================================================
--- /applications/editors/josm/plugins/wikipedia/test/unit/org/wikipedia/WikidataTagCellRendererTest.java	(revision 32743)
+++ /applications/editors/josm/plugins/wikipedia/test/unit/org/wikipedia/WikidataTagCellRendererTest.java	(revision 32744)
@@ -2,4 +2,5 @@
 
 import static org.hamcrest.CoreMatchers.is;
+import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertThat;
 
@@ -32,4 +33,5 @@
         }).get(); // wait for labels to be fetched
         final JLabel label = renderer.renderValues(ids, new JTable(), new JLabel());
+        assertNotNull(label);
         assertThat(label.getText(), is("<html>" +
                 "Q84 <span color='gray'>London</span>; " +
