diff --git a/tls/src/main/java/com/iluwatar/tls/DateFormatUglyRunnable.java b/tls/src/main/java/com/iluwatar/tls/DateFormatUglyRunnable.java
deleted file mode 100644
index ca883a913..000000000
--- a/tls/src/main/java/com/iluwatar/tls/DateFormatUglyRunnable.java
+++ /dev/null
@@ -1,76 +0,0 @@
-/**
- * The MIT License
- * Copyright (c) 2016 Thomas Bauer
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-package com.iluwatar.tls;
-
-import java.text.DateFormat;
-import java.text.SimpleDateFormat;
-
-/**
- * DateFormatUglyRunnable converts string dates to a date format using
- * SimpleDateFormat. The date value and the date format will be passed to the
- * Runnable by the constructor. The constructor creates an instance of
- * SimpleDateFormat and stores it in a class variable. For the complete
- * description of the example see {@link AppUgly}
- *
- */
-public class DateFormatUglyRunnable implements Runnable {
-  // class variables (members)
-  private DateFormat df;
-  private String dateValue;
-
-  /**
-   * The date format and the date value are passed to the constructor
-   * 
-   * @param inDateFormat
-   *          string date format string, e.g. "dd/MM/yyyy"
-   * @param inDateValue
-   *          string date value, e.g. "21/06/2016"
-   */
-  public DateFormatUglyRunnable(String inDateFormat, String inDateValue) {
-    this.df = new SimpleDateFormat(inDateFormat);
-    this.dateValue = inDateValue;
-  }
-
-  /**
-   * @see java.lang.Runnable#run()
-   */
-  @Override
-  public void run() {
-    System.out.println(Thread.currentThread() + " started executing...");
-
-    // Convert date value to date 5 times
-    for (int i = 1; i <= 5; i++) {
-      try {
-        // Create the date value and store it in dateList
-        AppUgly.dateList.add(this.df.parse(this.dateValue));
-      } catch (Exception e) {
-        // write the Exception to a list and continue work
-        AppUgly.exceptionList.add(e.getClass() + ": " + e.getMessage());
-      }
-
-    }
-
-    System.out.println(Thread.currentThread() + " finished executing");
-  }
-}