Index: trunk/test/unit/org/openstreetmap/josm/tools/bugreport/BugReportTest.java
===================================================================
--- trunk/test/unit/org/openstreetmap/josm/tools/bugreport/BugReportTest.java	(revision 18666)
+++ trunk/test/unit/org/openstreetmap/josm/tools/bugreport/BugReportTest.java	(revision 18668)
@@ -13,4 +13,5 @@
 import java.io.StringWriter;
 import java.lang.reflect.Field;
+import java.util.concurrent.TimeUnit;
 import java.util.function.Consumer;
 import java.util.logging.Handler;
@@ -136,5 +137,6 @@
                         })),
                 Arguments.of("GuiHelper::runInEDTAndWait", (Consumer<Runnable>) GuiHelper::runInEDTAndWait),
-                Arguments.of("MainApplication.worker", (Consumer<Runnable>) MainApplication.worker::execute)
+                Arguments.of("MainApplication.worker", (Consumer<Runnable>) runnable ->
+                        assertDoesNotThrow(() -> MainApplication.worker.submit(runnable).get(1, TimeUnit.SECONDS)))
         );
     }