/*
 * Copyright (c) 2003, 2025, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 */

package java.util;

/**
 * Unchecked exception thrown when there is a format specifier which does not
 * have a corresponding argument or if an argument index refers to an argument
 * that does not exist.
 *
 * <p> Unless otherwise specified, passing a {@code null} argument to any
 * method or constructor in this class will cause a {@link
 * NullPointerException} to be thrown.
 *
 * @since 1.5
 */
public non-sealed class MissingFormatArgumentException extends IllegalFormatException {

    @java.io.Serial
    private static final long serialVersionUID = 19190115L;

    /** @serial */
    private String s;

    /**
     * Constructs an instance of this class with the unmatched format
     * specifier.
     *
     * @param  s
     *         Format specifier which does not have a corresponding argument
     */
    public MissingFormatArgumentException(String s) {
        if (s == null)
            throw new NullPointerException();
        this.s = s;
    }

    /**
     * Returns the unmatched format specifier.
     *
     * @return  The unmatched format specifier
     */
    public String getFormatSpecifier() {
        return s;
    }

    public String getMessage() {
        return "Format specifier '" + s + "'";
    }
}
