1 /*
2  * Copyright (c) 2003, Oracle and/or its affiliates. All rights reserved.
3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4  *
5  * This code is free software; you can redistribute it and/or modify it
6  * under the terms of the GNU General Public License version 2 only, as
7  * published by the Free Software Foundation.  Oracle designates this
8  * particular file as subject to the "Classpath" exception as provided
9  * by Oracle in the LICENSE file that accompanied this code.
10  *
11  * This code is distributed in the hope that it will be useful, but WITHOUT
12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14  * version 2 for more details (a copy is included in the LICENSE file that
15  * accompanied this code).
16  *
17  * You should have received a copy of the GNU General Public License version
18  * 2 along with this work; if not, write to the Free Software Foundation,
19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20  *
21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22  * or visit www.oracle.com if you need additional information or have any
23  * questions.
24  */
25 
26 package java.util;
27 
28 /**
29  * Unchecked exception thrown when duplicate flags are provided in the format
30  * specifier.
31  *
32  * <p> Unless otherwise specified, passing a <tt>null</tt> argument to any
33  * method or constructor in this class will cause a {@link
34  * NullPointerException} to be thrown.
35  *
36  * @since 1.5
37  */
38 public class DuplicateFormatFlagsException extends IllegalFormatException {
39 
40     private static final long serialVersionUID = 18890531L;
41 
42     private String flags;
43 
44     /**
45      * Constructs an instance of this class with the specified flags.
46      *
47      * @param  f
48      *         The set of format flags which contain a duplicate flag.
49      */
DuplicateFormatFlagsException(String f)50     public DuplicateFormatFlagsException(String f) {
51         if (f == null)
52             throw new NullPointerException();
53         this.flags = f;
54     }
55 
56     /**
57      * Returns the set of flags which contains a duplicate flag.
58      *
59      * @return  The flags
60      */
getFlags()61     public String getFlags() {
62         return flags;
63     }
64 
getMessage()65     public String getMessage() {
66         return String.format("Flags = '%s'", flags);
67     }
68 }
69