Index: trunk/test/unit/org/openstreetmap/josm/tools/PlatformHookOsxTest.java
===================================================================
--- trunk/test/unit/org/openstreetmap/josm/tools/PlatformHookOsxTest.java	(revision 18983)
+++ trunk/test/unit/org/openstreetmap/josm/tools/PlatformHookOsxTest.java	(revision 18985)
@@ -35,5 +35,6 @@
     @Test
     void testStartupHook() {
-        hook.startupHook((a, b, c, d) -> System.out.println("java callback"), u -> System.out.println("webstart callback"));
+        hook.startupHook((a, b, c, d) -> System.out.println("java callback"), u -> System.out.println("webstart callback"),
+                (a, b, c) -> System.out.println("sanity check callback"));
     }
 
Index: trunk/test/unit/org/openstreetmap/josm/tools/PlatformHookWindowsTest.java
===================================================================
--- trunk/test/unit/org/openstreetmap/josm/tools/PlatformHookWindowsTest.java	(revision 18983)
+++ trunk/test/unit/org/openstreetmap/josm/tools/PlatformHookWindowsTest.java	(revision 18985)
@@ -47,5 +47,6 @@
         final PlatformHook.JavaExpirationCallback javaCallback = (a, b, c, d) -> System.out.println("java callback");
         final PlatformHook.WebStartMigrationCallback webstartCallback = u -> System.out.println("webstart callback");
-        assertDoesNotThrow(() -> hook.startupHook(javaCallback, webstartCallback));
+        final PlatformHook.SanityCheckCallback sanityCheckCallback = (a, b, c) -> System.out.println("sanity check callback");
+        assertDoesNotThrow(() -> hook.startupHook(javaCallback, webstartCallback, sanityCheckCallback));
     }