Index: trunk/test/unit/org/openstreetmap/josm/tools/AudioPlayerTest.java
===================================================================
--- trunk/test/unit/org/openstreetmap/josm/tools/AudioPlayerTest.java	(revision 11149)
+++ trunk/test/unit/org/openstreetmap/josm/tools/AudioPlayerTest.java	(revision 11152)
@@ -58,4 +58,5 @@
             assertTrue(duration < MAX_DURATION);
             AudioPlayer.reset();
+            Thread.sleep(1000); // precaution, see #13809
         }
     }