Index: /trunk/test/unit/org/openstreetmap/josm/plugins/PluginHandlerTestIT.java
===================================================================
--- /trunk/test/unit/org/openstreetmap/josm/plugins/PluginHandlerTestIT.java	(revision 15241)
+++ /trunk/test/unit/org/openstreetmap/josm/plugins/PluginHandlerTestIT.java	(revision 15242)
@@ -55,5 +55,5 @@
 
         Map<String, Throwable> loadingExceptions = PluginHandler.pluginLoadingExceptions.entrySet().stream()
-                .filter(e -> !(e.getValue() instanceof HeadlessException))
+                .filter(e -> !(ExceptionUtils.getRootCause(e.getValue()) instanceof HeadlessException))
                 .collect(Collectors.toMap(e -> e.getKey(), e -> ExceptionUtils.getRootCause(e.getValue())));