Refactors null object pattern to java-11

null-object/src/test/java/com/iluwatar/nullobject/AppTest.java

@@ -26,15 +26,11 @@ package com.iluwatar.nullobject;
 import org.junit.jupiter.api.Test;
 
 /**
- * 
  * Application test
- *
  */
 public class AppTest {
-
   @Test
   public void test() {
-    String[] args = {};
-    App.main(args);
+    App.main(new String[]{});
   }
 }