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 /*
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  * Licensed to the Apache Software Foundation (ASF) under one
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  * or more contributor license agreements.  See the NOTICE file
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  * distributed with this work for additional information
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  * regarding copyright ownership.  The ASF licenses this file
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  * to you under the Apache License, Version 2.0 (the
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  * "License"); you may not use this file except in compliance
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  * with the License.  You may obtain a copy of the License at
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  *
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 *   http://www.apache.org/licenses/LICENSE-2.0
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 *
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 * Unless required by applicable law or agreed to in writing,
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 * software distributed under the License is distributed on an
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 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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 * KIND, either express or implied.  See the License for the
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 * specific language governing permissions and limitations
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 * under the License.
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 */
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package org.apache.sling.api;

The SlingException is the base exception used throughout the Sling API. This exception should only be thrown if there is no more specific exception defined in the Sling API for the cause and if a cause can be supplied. Otherwise the more specific exception must be used.

The SlingException is a RuntimeException because this exception is not intended to be caught by client code. Rather this exception (and extensions thereof) should be passed through up to the actual Sling error and exception handling. 

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public class SlingException extends RuntimeException {

    
Serial Version ID for pre Java2 RMI 
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    private static final long serialVersionUID = -1243027389278210618L;

    
Constructs a new Sling exception. 
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    protected SlingException() {
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        super();
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    }

    
Constructs a new Sling exception with the given text. The Sling framework may use the text to write it to a log.

Parameters:
text the exception text
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    protected SlingException(String text) {
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        super(text);
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    }

    
Constructs a new Sling exception when the Servlet needs to do the following:
  • throw an exception
  • include the "root cause" exception
  • include a description message

Parameters:
text the exception text
cause the root cause
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    public SlingException(String text, Throwable cause) {
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        super(text, cause);
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        // ensure proper JDK 1.4 exception chaining
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        if (getCause() == null) {
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            initCause(cause); 
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        }
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    }

    
Constructs a new Sling exception when the Servlet needs to throw an exception. The exception's message is based on the localized message of the underlying exception.

Parameters:
cause the root cause
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    protected SlingException(Throwable cause) {
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        super(cause);
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        // ensure proper JDK 1.4 exception chaining
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        if (getCause() == null) {
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            initCause(cause); 
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        }
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    }
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