Check S1451 copyright rule

src/main/java/com/mycompany/app/App.java

@@ -1,11 +1,32 @@
+/**
+2 * COPYRIGHT: Comviva Technologies Pvt. Ltd.
+3 * This software is the sole property of Comviva
+4 * and is protected by copyright law and international
+5 * treaty provisions. Unauthorized reproduction or
+6 * redistribution of this program, or any portion of
+7 * it may result in severe civil and criminal penalties
+8 * and will be prosecuted to the maximum extent possible
+9 * under the law. Comviva reserves all rights not
+10 * expressly granted. You may not reverse engineer, decompile,
+11 * or disassemble the software, except and only to the
+12 * extent that such activity is expressly permitted
+13 * by applicable law notwithstanding this limitation.
+14 * THIS SOFTWARE IS PROVIDED TO YOU “AS IS” WITHOUT
+15 * WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED,
+16 * INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES
+17 * OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR PURPOSE.
+18 * YOU ASSUME THE ENTIRE RISK AS TO THE ACCURACY
+19 * AND THE USE OF THIS SOFTWARE. Comviva SHALL NOT BE LIABLE FOR
+20 * ANY DAMAGES WHATSOEVER ARISING OUT OF THE USE OF OR INABILITY TO
+21 * USE THIS SOFTWARE, EVEN IF Comviva HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+22 **/
 package com.mycompany.app;
 
 /**
  * Hello world!
  */
 public class App
 {
-
     private final String message = "Hello World!";
 
     public App() {}
@@ -17,34 +38,4 @@ public static void main(String[] args) {
     private final String getMessage() {
         return message;
     }
-
-        private class S2259FalsePositive {
-        private enum Valid {
-            OK, NOT_OK;
-        }
-
-        public String test(String s) {
-            Valid valid = Valid.OK;
-            if (s == null) {
-                valid = Valid.NOT_OK;
-            }
-
-            if (valid == Valid.OK) {
-                return s.toLowerCase(); // FP
-            }
-            return "";
-        }
-
-        public String test2(String s) {
-            boolean valid = true;
-            if (s == null) {
-                valid = false;
-            }
-
-            if (valid) {
-                return s.toLowerCase(); // No FP
-            }
-            return "";
-        }
-    }
 }