1 /*
   2  * Copyright (c) 2009, 2020, 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 
  27 package javax.xml.stream;
  28 
  29 /**
  30  * An error class for reporting factory configuration errors.
  31  *
  32  * @version 1.0
  33  * @author Copyright (c) 2009 by Oracle Corporation. All Rights Reserved.
  34  * @since 1.6
  35  */
  36 public class FactoryConfigurationError extends Error {
  37     private static final long serialVersionUID = -2994412584589975744L;
  38 
  39   /**
  40    * The nested exception
  41    */
  42   Exception nested;
  43 
  44   /**
  45    * Default constructor
  46    */
  47   public FactoryConfigurationError(){}
  48 
  49   /**
  50    * Construct an exception with a nested inner exception
  51    *
  52    * @param e the exception to nest
  53    */
  54   public FactoryConfigurationError(java.lang.Exception e){
  55     nested = e;
  56   }
  57 
  58   /**
  59    * Construct an exception with a nested inner exception
  60    * and a message
  61    *
  62    * @param e the exception to nest
  63    * @param msg the message to report
  64    */
  65   public FactoryConfigurationError(java.lang.Exception e, java.lang.String msg){
  66     super(msg);
  67     nested = e;
  68   }
  69 
  70   /**
  71    * Construct an exception with a nested inner exception
  72    * and a message
  73    *
  74    * @param msg the message to report
  75    * @param e the exception to nest
  76    */
  77   public FactoryConfigurationError(java.lang.String msg, java.lang.Exception e){
  78     super(msg);
  79     nested = e;
  80   }
  81 
  82   /**
  83    * Construct an exception with associated message
  84    *
  85    * @param msg the message to report
  86    */
  87   public FactoryConfigurationError(java.lang.String msg) {
  88     super(msg);
  89   }
  90 
  91   /**
  92    * Return the nested exception (if any)
  93    *
  94    * @return the nested exception or null
  95    */
  96   public Exception getException() {
  97     return nested;
  98   }
  99     /**
 100      * use the exception chaining mechanism of JDK1.4
 101     */
 102     @Override
 103     public Throwable getCause() {
 104         return nested;
 105     }
 106 
 107   /**
 108    * Report the message associated with this error
 109    *
 110    * @return the string value of the message
 111    */
 112   public String getMessage() {
 113     String msg = super.getMessage();
 114     if(msg != null)
 115       return msg;
 116     if(nested != null){
 117       msg = nested.getMessage();
 118       if(msg == null)
 119         msg = nested.getClass().toString();
 120     }
 121     return msg;
 122   }
 123 
 124 
 125 
 126 }