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diff --git a/support/arara/source/src/main/java/com/github/cereda/arara/model/Evaluator.java b/support/arara/source/src/main/java/com/github/cereda/arara/model/Evaluator.java
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--- a/support/arara/source/src/main/java/com/github/cereda/arara/model/Evaluator.java
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@@ -1,158 +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;
-import com.github.cereda.arara.controller.LanguageController;
-import com.github.cereda.arara.utils.CommonUtils;
-import com.github.cereda.arara.utils.Methods;
-import java.util.HashMap;
-import java.util.Map;
-import org.mvel2.templates.TemplateRuntime;
-
-/**
- * Implements the evaluator model, on which a conditional can be analyzed and
- * processed.
- * @author Paulo Roberto Massa Cereda
- * @version 4.0
- * @since 4.0
- */
-public class Evaluator {
-
- // this attribute holds the maximum number of
- // loops arara will accept; it's like
- // reaching infinity
- private final long loops;
-
- // the counter for the current execution, it
- // helps us keep track of the number of times
- // this evaluation has happened, and also to
- // prevent potential infinite loops
- private long counter;
-
- // a flag that indicates the
- // evaluation to halt regardless
- // of the the result
- private boolean halt;
-
- // the application messages obtained from the
- // language controller
- private static final LanguageController messages =
- LanguageController.getInstance();
-
- /**
- * Constructor. It gets the application maximum number of loops and reset
- * all counters.
- */
- public Evaluator() {
- loops = (Long) ConfigurationController.getInstance().
- get("execution.loops");
- counter = 0;
- halt = false;
- }
-
- /**
- * Evaluate the provided conditional.
- * @param conditional The conditional object.
- * @return A boolean value indicating if the conditional holds.
- * @throws AraraException Something wrong happened, to be caught in the
- * higher levels.
- */
- public boolean evaluate(Conditional conditional) throws AraraException {
-
- // when in dry-run mode, arara
- // always ignore conditional evaluations
- if (((Boolean) ConfigurationController.
- getInstance().get("execution.dryrun")) == true) {
- return false;
- }
-
- switch (conditional.getType()) {
- case NONE:
- return false;
- case IF:
- case UNLESS:
- if (!halt) {
- halt = true;
- } else {
- return false;
- }
- break;
- }
-
- // check counters and see if the execution
- // has reached our concept of infinity,
- // thus breaking the cycles
- counter++;
- if (((conditional.getType() == Conditional.ConditionalType.WHILE) &&
- (counter > loops)) ||
- ((conditional.getType() == Conditional.ConditionalType.UNTIL) &&
- (counter >= loops))) {
- return false;
- } else {
-
- Map<String, Object> context = new HashMap<String, Object>();
- Methods.addConditionalMethods(context);
-
- try {
- Object result = TemplateRuntime.eval("@{ ".concat(
- conditional.getCondition()).concat(" }"), context);
- if (!CommonUtils.checkClass(Boolean.class, result)) {
- throw new AraraException(
- messages.getMessage(
- Messages.ERROR_EVALUATE_NOT_BOOLEAN_VALUE
- )
- );
- } else {
- boolean value = (Boolean) result;
- switch (conditional.getType()) {
- case UNLESS:
- case UNTIL:
- value = !value;
- break;
- }
- return value;
- }
- } catch (RuntimeException exception) {
- throw new AraraException(
- messages.getMessage(
- Messages.ERROR_EVALUATE_COMPILATION_FAILED
- ),
- exception
- );
- }
- }
- }
-
-}