Index: /trunk/test/unit/org/openstreetmap/josm/actions/SessionSaveActionTest.java
===================================================================
--- /trunk/test/unit/org/openstreetmap/josm/actions/SessionSaveActionTest.java	(revision 18799)
+++ /trunk/test/unit/org/openstreetmap/josm/actions/SessionSaveActionTest.java	(revision 18800)
@@ -20,4 +20,5 @@
 import org.openstreetmap.josm.testutils.annotations.Projection;
 import org.openstreetmap.josm.testutils.mockers.JOptionPaneSimpleMocker;
+import org.openstreetmap.josm.testutils.mockers.WindowMocker;
 
 /**
@@ -34,4 +35,5 @@
     void testSaveAction() throws IOException {
         TestUtils.assumeWorkingJMockit();
+        new WindowMocker();
 
         File jos = File.createTempFile("session", ".jos");