private static final int MAX_PACKAGE_SIZE = 50 * 1024 * 1024;
 
-       private static final int TRY_COUNT = 3;
-
        private FileUtil() {
                //Empty constructor
        }
         */
        public static boolean createDirectory(String dir) {
                File folder = new File(dir);
-               int tryCount = 0;
-               while (tryCount < TRY_COUNT) {
-                       tryCount++;
                        if (!folder.exists() && !folder.mkdirs()) {
-                               continue;
+                               return false;
                        } else {
                                return true;
                        }
-               }
-
-               return folder.exists();
        }
 
        /**
                                }
 
                                try (InputStream input = zipFile.getInputStream(entry);
-                                               BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(file));) {
+                                           BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(file));) {
                                        int length = 0;
                                        while ((length = input.read(buffer)) != -1) {
                                                bos.write(buffer, 0, length);
 
         onBoardResultObj.setOperStatus(1);
         boolean res = FileUtil.writeJsonDatatoFile(filePath, onBoardResultObj);
         assertEquals(res, true);
+        String filePath1 = "src//test//resources";
+        res = FileUtil.writeJsonDatatoFile(filePath1, onBoardResultObj);
+        assertEquals(res, false);
 
     }
 
         String dirPath = "src//test//resources//TestDirectory";
         boolean res = FileUtil.deleteFile(dirPath);
         assertEquals(res, true);
+        String dirPath1 = "src//test//resources11";
+        res = FileUtil.deleteFile(dirPath1);
+        assertEquals(res, true);
+
     }
 
     @Test
         assertNotNull(obj);
     }
 
+    @Test
+    public void testvalidateFile() {
+        File fileData= null;
+        boolean res = FileUtil.validateFile(fileData);
+        assertEquals(res, false);
+    }
+
     @Test
     public void testGetPkgSize() {
         long pkgSize = PackageWrapperUtil.getPacakgeSize("src/test/resources/Test.txt");