1 /*
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3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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5  * This code is free software; you can redistribute it and/or modify it
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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.
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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
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19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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24  */
25 
26 package java.util;
27 
28 /**
29  * Unchecked exception thrown when an unknown conversion is given.
30  *
31  * <p> Unless otherwise specified, passing a {@code null} argument to
32  * any method or constructor in this class will cause a {@link
33  * NullPointerException} to be thrown.
34  *
35  * @since 1.5
36  */
37 public class UnknownFormatConversionException extends IllegalFormatException {
38 
39     @java.io.Serial
40     private static final long serialVersionUID = 19060418L;
41 
42     private String s;
43 
44     /**
45      * Constructs an instance of this class with the unknown conversion.
46      *
47      * @param  s
48      *         Unknown conversion
49      */
UnknownFormatConversionException(String s)50     public UnknownFormatConversionException(String s) {
51         if (s == null)
52             throw new NullPointerException();
53         this.s = s;
54     }
55 
56     /**
57      * Returns the unknown conversion.
58      *
59      * @return  The unknown conversion.
60      */
getConversion()61     public String getConversion() {
62         return s;
63     }
64 
65     // javadoc inherited from Throwable.java
getMessage()66     public String getMessage() {
67         return String.format("Conversion = '%s'", s);
68     }
69 }
70