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    1   /*
    2    * Licensed to the Apache Software Foundation (ASF) under one or more
    3    * contributor license agreements.  See the NOTICE file distributed with
    4    * this work for additional information regarding copyright ownership.
    5    * The ASF licenses this file to You under the Apache License, Version 2.0
    6    * (the "License"); you may not use this file except in compliance with
    7    * the License.  You may obtain a copy of the License at
    8    * 
    9    *      http://www.apache.org/licenses/LICENSE-2.0
   10    * 
   11    * Unless required by applicable law or agreed to in writing, software
   12    * distributed under the License is distributed on an "AS IS" BASIS,
   13    * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   14    * See the License for the specific language governing permissions and
   15    * limitations under the License.
   16    */ 
   17   
   18   package org.apache.juli.logging;
   19   
   20   
   21   /**
   22    * <p>An exception that is thrown only if a suitable <code>LogFactory</code>
   23    * or <code>Log</code> instance cannot be created by the corresponding
   24    * factory methods.</p>
   25    *
   26    * @author Craig R. McClanahan
   27    * @version $Revision: 467222 $ $Date: 2006-10-24 05:17:11 +0200 (Tue, 24 Oct 2006) $
   28    */
   29   
   30   public class LogConfigurationException extends RuntimeException {
   31   
   32   
   33       /**
   34        * Construct a new exception with <code>null</code> as its detail message.
   35        */
   36       public LogConfigurationException() {
   37           super();
   38       }
   39   
   40   
   41       /**
   42        * Construct a new exception with the specified detail message.
   43        *
   44        * @param message The detail message
   45        */
   46       public LogConfigurationException(String message) {
   47           super(message);
   48       }
   49   
   50   
   51       /**
   52        * Construct a new exception with the specified cause and a derived
   53        * detail message.
   54        *
   55        * @param cause The underlying cause
   56        */
   57       public LogConfigurationException(Throwable cause) {
   58           this( ((cause == null) ? null : cause.toString()), cause);
   59       }
   60   
   61   
   62       /**
   63        * Construct a new exception with the specified detail message and cause.
   64        *
   65        * @param message The detail message
   66        * @param cause The underlying cause
   67        */
   68       public LogConfigurationException(String message, Throwable cause) {
   69   
   70           super(message);
   71           this.cause = cause; // Two-argument version requires JDK 1.4 or later
   72   
   73       }
   74   
   75   
   76       /**
   77        * The underlying cause of this exception.
   78        */
   79       protected Throwable cause = null;
   80   
   81   
   82       /**
   83        * Return the underlying cause of this exception (if any).
   84        */
   85       public Throwable getCause() {
   86   
   87           return (this.cause);
   88   
   89       }
   90   
   91   
   92   }

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