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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
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 */
// $Id: XPathException.java 446598 2006-09-15 12:55:40Z jeremias $

package javax.xml.xpath;

import java.io.PrintWriter;

/**
 * XPathException represents a generic XPath exception.

* * @author Norman Walsh * @author Jeff Suttor * @version $Revision: 446598 $, $Date: 2006-09-15 08:55:40 -0400 (Fri, 15 Sep 2006) $ * @since 1.5 */ public class XPathException extends Exception { private final Throwable cause; /** *

Stream Unique Identifier.

*/ private static final long serialVersionUID = -1837080260374986980L; /** *

Constructs a new XPathException with the specified detail message.

* *

The cause is not initialized.

* *

If message is null, then a NullPointerException is thrown.

* * @param message The detail message. */ public XPathException(String message) { super(message); if ( message == null ) { throw new NullPointerException ( "message can't be null"); } this.cause = null; } /** *

Constructs a new XPathException with the specified cause.

* *

If cause is null, then a NullPointerException is thrown.

* * @param cause The cause. * * @throws NullPointerException if cause is null. */ public XPathException(Throwable cause) { super(cause == null ? null : cause.toString()); this.cause = cause; if ( cause == null ) { throw new NullPointerException ( "cause can't be null"); } } public Throwable getCause() { return cause; } public void printStackTrace( java.io.PrintStream s ) { if( getCause() != null ) { getCause().printStackTrace(s); s.println("--------------- linked to ------------------"); } super.printStackTrace(s); } public void printStackTrace() { printStackTrace(System.err); } public void printStackTrace(PrintWriter s) { if( getCause() != null ) { getCause().printStackTrace(s); s.println("--------------- linked to ------------------"); } super.printStackTrace(s); } }




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