--- a/vm-heap-analysis/client-swing/src/test/java/com/redhat/thermostat/vm/heap/analysis/client/swing/internal/HeapDetailsSwingTest.java	Thu Feb 09 15:16:53 2017 +0100
+++ b/vm-heap-analysis/client-swing/src/test/java/com/redhat/thermostat/vm/heap/analysis/client/swing/internal/HeapDetailsSwingTest.java	Thu Feb 09 15:16:54 2017 +0100
@@ -40,6 +40,7 @@
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
 import static org.junit.Assert.assertTrue;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.when;
@@ -167,7 +168,12 @@
             public void run() {
                 tabPane = frameFixture.tabbedPane("tabs");
                 assertNotNull(tabPane);
-                assertEquals(0, tabPane.component().getComponents().length);
+                assertEquals(0, tabPane.component().getSelectedIndex());
+                assertEquals(3, tabPane.component().getTabCount());
+
+                assertNull(tabPane.component().getTabComponentAt(0));
+                assertNull(tabPane.component().getTabComponentAt(1));
+                assertNull(tabPane.component().getTabComponentAt(2));
             }
         });
 
@@ -206,7 +212,7 @@
         SwingUtilities.invokeAndWait(new Runnable() {
             @Override
             public void run() {
-                assertEquals(3, tabPane.component().getComponents().length);
+                assertEquals(3, tabPane.component().getTabCount());
             }
         });
     }