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diff --git a/support/arara/source/src/main/java/com/github/cereda/arara/model/StopWatch.java b/support/arara/source/src/main/java/com/github/cereda/arara/model/StopWatch.java
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index da7062cf19..0000000000
--- a/support/arara/source/src/main/java/com/github/cereda/arara/model/StopWatch.java
+++ /dev/null
@@ -1,84 +0,0 @@
-/**
- * Arara, the cool TeX automation tool
- * Copyright (c) 2012 -- 2019, Paulo Roberto Massa Cereda
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * 3. Neither the name of the project's author nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
- * WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-package com.github.cereda.arara.model;
-
-import com.github.cereda.arara.controller.ConfigurationController;
-
-/**
- * Implements a stopwatch.
- * @author Paulo Roberto Massa Cereda
- * @version 4.0
- * @since 4.0
- */
-public class StopWatch {
-
- // two variables indicating the
- // times the stopwatch started
- // and stopped
- private static long beginning = 0;
- private static long end = 0;
-
- // a variable to indicate the
- // stopwatch is enabled; so far,
- // it hasn't started, then it is
- // not enabled
- private static boolean enabled = false;
-
- /**
- * Starts the stopwatch.
- */
- public static void start() {
- beginning = System.nanoTime();
- enabled = true;
- }
-
- /**
- * Stops the stopwatch.
- */
- public static void stop() {
- end = System.nanoTime();
- }
-
- /**
- * Gets the string representation of the elapsed time.
- * @return A string representation of the elapsed time.
- */
- public static String getTime() {
- Language language = (Language) ConfigurationController.
- getInstance().get("execution.language");
- double result = enabled ? (double) (end - beginning) / 1000000000 : 0.0;
- return String.format(language.getLocale(), "%1.2f", result);
- }
-
-}