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    1   /*
    2    * Copyright (c) 2003, 2004, 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 the argument corresponding to the format
   30    * specifier is of an incompatible type.
   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 IllegalFormatConversionException extends IllegalFormatException {
   39   
   40       private static final long serialVersionUID = 17000126L;
   41   
   42       private char c;
   43       private Class arg;
   44   
   45       /**
   46        * Constructs an instance of this class with the mismatched conversion and
   47        * the corresponding argument class.
   48        *
   49        * @param  c
   50        *         Inapplicable conversion
   51        *
   52        * @param  arg
   53        *         Class of the mismatched argument
   54        */
   55       public IllegalFormatConversionException(char c, Class<?> arg) {
   56           if (arg == null)
   57               throw new NullPointerException();
   58           this.c = c;
   59           this.arg = arg;
   60       }
   61   
   62       /**
   63        * Returns the inapplicable conversion.
   64        *
   65        * @return  The inapplicable conversion
   66        */
   67       public char getConversion() {
   68           return c;
   69       }
   70   
   71       /**
   72        * Returns the class of the mismatched argument.
   73        *
   74        * @return   The class of the mismatched argument
   75        */
   76       public Class<?> getArgumentClass() {
   77           return arg;
   78       }
   79   
   80       // javadoc inherited from Throwable.java
   81       public String getMessage() {
   82           return String.format("%c != %s", c, arg.getName());
   83       }
   84   }

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