test/jdk/tools/jpackage/apps/com.hello/com/hello/Hello.java

@@ -39,16 +39,22 @@
 
         try (PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter(file)))) {
             System.out.println(MSG);
             out.println(MSG);
 
-            System.out.println("args.length: " + args.length);
+            System.out.println("args.length xxx: " + args.length);
             out.println("args.length: " + args.length);
 
             for (String arg : args) {
-                System.out.println(arg);
-                out.println(arg);
+                String outs;
+                if (arg.startsWith("jpackage.app")) {
+                    outs = arg + "=" + System.getProperty(arg);
+                } else {
+                    outs = arg;
+                }
+                System.out.println(outs);
+                out.println(outs);
             }
 
             for (int index = 1; index <= EXPECTED_NUM_OF_PARAMS; index++) {
                 String value = System.getProperty("param" + index);
                 if (value != null) {