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 */
017package org.apache.commons.math4.exception;
018
019import org.apache.commons.math4.exception.util.LocalizedFormats;
020
021/**
022 * Exception to be thrown when a number is not a number.
023 *
024 * @since 3.1
025 */
026public class NotANumberException extends MathIllegalNumberException {
027    /** Serializable version Id. */
028    private static final long serialVersionUID = 20120906L;
029
030    /**
031     * Construct the exception.
032     */
033    public NotANumberException() {
034        super(LocalizedFormats.NAN_NOT_ALLOWED, Double.valueOf(Double.NaN));
035    }
036
037}