    001    /*
    002     * Licensed to the Apache Software Foundation (ASF) under one or more
    003     * contributor license agreements.  See the NOTICE file distributed with
    004     * this work for additional information regarding copyright ownership.
    005     * The ASF licenses this file to You under the Apache License, Version 2.0
    006     * (the "License"); you may not use this file except in compliance with
    007     * the License.  You may obtain a copy of the License at
    008     *
    009     *      http://www.apache.org/licenses/LICENSE-2.0
    010     *
    011     * Unless required by applicable law or agreed to in writing, software
    012     * distributed under the License is distributed on an "AS IS" BASIS,
    013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    014     * See the License for the specific language governing permissions and
    015     * limitations under the License.
    016     */
    017    package org.apache.commons.math3.exception;
    018
    019    import org.apache.commons.math3.exception.util.LocalizedFormats;
    020
    021    /**
    022     * Exception to be thrown when a number is not a number.
    023     *
    024     * @since 3.1
    025     * @version $Id: NotANumberException.java 1422195 2012-12-15 06:45:18Z psteitz $
    026     */
    027    public class NotANumberException extends MathIllegalNumberException {
    028        /** Serializable version Id. */
    029        private static final long serialVersionUID = 20120906L;
    030
    031        /**
    032         * Construct the exception.
    033         */
    034        public NotANumberException() {
    035            super(LocalizedFormats.NAN_NOT_ALLOWED, Double.NaN);
    036        }
    037
    038    }