src/jdk.jpackage/windows/classes/jdk/jpackage/internal/WindowsAppImageBuilder.java

@@ -252,13 +252,12 @@
 
         // create the additional launcher(s), if any
         List<Map<String, ? super Object>> entryPoints =
                 StandardBundlerParam.ADD_LAUNCHERS.fetchFrom(params);
         for (Map<String, ? super Object> entryPoint : entryPoints) {
-            Map<String, ? super Object> tmp = new HashMap<>(originalParams);
-            tmp.putAll(entryPoint);
-            createLauncherForEntryPoint(tmp);
+            createLauncherForEntryPoint(
+                    AddLauncherArguments.merge(originalParams, entryPoint));
         }
     }
 
     @Override
     public void prepareJreFiles() throws IOException {}