diff --git a/tls/src/main/java/com/iluwatar/tls/App.java b/tls/src/main/java/com/iluwatar/tls/App.java
deleted file mode 100644
index b16aa1fc6..000000000
--- a/tls/src/main/java/com/iluwatar/tls/App.java
+++ /dev/null
@@ -1,108 +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.util.ArrayList;
-import java.util.Calendar;
-import java.util.Collections;
-import java.util.Date;
-import java.util.List;
-
-/**
- * ThreadLocal pattern
- * <p>
- * This App shows how to create an isolated space per each thread. In this
- * example the usage of SimpleDateFormat is made to be thread-safe. This is an
- * example of the ThreadLocal pattern.
- * <p>
- * By applying the ThreadLocal pattern you can keep track of application
- * instances or locale settings throughout the handling of a request. The
- * ThreadLocal class works like a static variable, with the exception that it is
- * only bound to the current thread! This allows us to use static variables in a
- * thread-safe way.
- * <p>
- * In Java, thread-local variables are implemented by the ThreadLocal class
- * object. ThreadLocal holds variable of type T, which is accessible via get/set
- * methods.
- * <p>
- * SimpleDateFormat is one of the basic Java classes and is not thread-safe. If
- * you do not isolate the instance of SimpleDateFormat per each thread then
- * problems arise. These problems are described with the example {@link AppUgly}
- * 
- */
-public class App {
-  // A list to collect the date values created in the the threads
-  static List<Date> dateList = Collections.synchronizedList(new ArrayList<Date>());
-
-  // A list to collect Exceptions thrown in the threads (should be none in
-  // this example)
-  static List<String> exceptionList = Collections.synchronizedList(new ArrayList<String>());
-
-  /**
-   * Program entry point
-   * 
-   * @param args
-   *          command line args
-   */
-  public static void main(String[] args) {
-    int counterDateValues = 0;
-    int counterExceptions = 0;
-
-    // Create a runnable
-    DateFormatRunnable runnableDf = new DateFormatRunnable("dd/MM/yyyy", "15/12/2015");
-    // start 4 threads, each using the same Runnable instance
-    Thread t1 = new Thread(runnableDf);
-    Thread t2 = new Thread(runnableDf);
-    Thread t3 = new Thread(runnableDf);
-    Thread t4 = new Thread(runnableDf);
-    t1.start();
-    t2.start();
-    t3.start();
-    t4.start();
-    try {
-      t1.join();
-      t2.join();
-      t3.join();
-      t4.join();
-    } catch (InterruptedException e) {
-      // Action not coded here
-    }
-    for (Date dt : dateList) {
-      // a correct run should deliver 20 times 15.12.2015
-      counterDateValues++;
-      Calendar cal = Calendar.getInstance();
-      cal.setTime(dt);
-      // Formatted output of the date value: DD.MM.YYYY
-      System.out.println(
-          cal.get(Calendar.DAY_OF_MONTH) + "." + cal.get(Calendar.MONTH) + "." + +cal.get(Calendar.YEAR));
-    }
-    for (String ex : exceptionList) {
-      // a correct run shouldn't deliver any exception
-      counterExceptions++;
-      System.out.println(ex);
-    }
-    System.out.println("The List dateList contains " + counterDateValues + " date values");
-    System.out.println("The List exceptionList contains " + counterExceptions + " exceptions");
-  }
-}