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diff --git a/utils/PDDLtoSANetTranslator/PDDLParser/src/pddl4j/exp/type/TypingException.java b/utils/PDDLtoSANetTranslator/PDDLParser/src/pddl4j/exp/type/TypingException.java
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+++ b/utils/PDDLtoSANetTranslator/PDDLParser/src/pddl4j/exp/type/TypingException.java
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+/*
+ * Copyright Dept. of Mathematics & Computer Science Univ. Paris-Descartes
+ *
+ * This software is governed by the CeCILL  license under French law and
+ * abiding by the rules of distribution of free software.  You can  use,
+ * modify and/ or redistribute the software under the terms of the CeCILL
+ * license as circulated by CEA, CNRS and INRIA at the following URL
+ * "http://www.cecill.info".
+ *
+ * As a counterpart to the access to the source code and  rights to copy,
+ * modify and redistribute granted by the license, users are provided only
+ * with a limited warranty  and the software's author,  the holder of the
+ * economic rights,  and the successive licensors  have only  limited
+ * liability.
+ *
+ * In this respect, the user's attention is drawn to the risks associated
+ * with loading,  using,  modifying and/or developing or reproducing the
+ * software by the user in light of its specific status of free software,
+ * that may mean  that it is complicated to manipulate,  and  that  also
+ * therefore means  that it is reserved for developers  and  experienced
+ * professionals having in-depth computer knowledge. Users are therefore
+ * encouraged to load and test the software's suitability as regards their
+ * requirements in conditions enabling the security of their systems and/or
+ * data to be ensured and,  more generally, to use and operate it in the
+ * same conditions as regards security.
+ *
+ * The fact that you are presently reading this means that you have had
+ * knowledge of the CeCILL license and that you accept its terms.
+ */
+
+package pddl4j.exp.type;
+
+/**
+ * A typing exception is thrown if an attempt is made to create a type with a
+ * inconsistant type hierarchy. A type hierarchy is consistant if it does not
+ * contain cycle and all types inherite from object except the primitive type
+ * number.
+ * 
+ * @author Damien Pellier
+ * @version 1.0
+ */
+public class TypingException extends RuntimeException {
+
+    /**
+     * The serial version id of the class.
+     */
+    private static final long serialVersionUID = 6846672849363008483L;
+
+    /**
+     * The inconsistant type.
+     */
+    private Type type;
+    
+    /**
+     * Creates a new typing exception. with null as its detail message. The
+     * cause is not initialized, and may subsequently be initialized by a call
+     * to <code>Throwable.initCause(java.lang.Throwable)</code>.
+     * 
+     * @param type the inconsitant type.
+     */
+    public TypingException(Type type) {
+        super();
+        this.type = type;
+    }
+
+    /**
+     * Creates a new typing exception with the specified cause and a detail
+     * message of <code>(cause==null ? null : cause.toString())</code> (which
+     * typically contains the class and detail message of cause). This
+     * constructor is useful for exceptions that are little more than wrappers
+     * for other throwables (for example, <code>PrivilegedActionException</code>).
+     * 
+     * @param type the inconsistant type.
+     * @param cause the cause (which is saved for later retrieval by the
+     *            <code>Throwable.getCause()</code> method). (A
+     *            <code>null</code> value is permitted, and indicates that the
+     *            cause is nonexistent or unknown.)
+     */
+    public TypingException(Type type, Throwable cause) {
+        super(cause);
+    }
+    
+    /**
+     * Returns the typing source of this exception.
+     * 
+     * @return the typing source of this exception.
+     */
+    public Type getType() {
+        return this.type;
+    }
+    
+    /**
+     * Returns a string representation of this typing exception.
+     * 
+     * @return a string representation of this typing exception.
+     */
+    public String toString() {
+        return this.getClass().getName() + ": type hierachy of "
+                    + this.type.toString() + " is insconsistant";
+    }
+}