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/*
* $Id: XPathException.java,v 1.5 2010-11-01 04:36:14 joehw Exp $
* %W% %E%
*/
package mf.javax.xml.xpath;
import java.io.PrintWriter;
/**
* <code>XPathException</code> represents a generic XPath exception.</p>
*
* @author <a href="Norman.Walsh@Sun.com">Norman Walsh</a>
* @author <a href="mailto:Jeff.Suttor@Sun.COM">Jeff Suttor</a>
* @version $Revision: 1.5 $, $Date: 2010-11-01 04:36:14 $
* @since 1.5
*/
public class XPathException extends Exception {
private final Throwable cause;
/**
* <p>Stream Unique Identifier.</p>
*/
private static final long serialVersionUID = -1837080260374986980L;
/**
* <p>Constructs a new <code>XPathException</code>
* with the specified detail <code>message</code>.</p>
*
* <p>The <code>cause</code> is not initialized.</p>
*
* <p>If <code>message</code> is <code>null</code>,
* then a <code>NullPointerException</code> is thrown.</p>
*
* @param message The detail message.
*
* @throws NullPointerException When <code>message</code> is
* <code>null</code>.
*/
public XPathException(String message) {
super(message);
if ( message == null ) {
throw new NullPointerException ( "message can't be null");
}
this.cause = null;
}
/**
* <p>Constructs a new <code>XPathException</code>
* with the specified <code>cause</code>.</p>
*
* <p>If <code>cause</code> is <code>null</code>,
* then a <code>NullPointerException</code> is thrown.</p>
*
* @param cause The cause.
*
* @throws NullPointerException if <code>cause</code> is <code>null</code>.
*/
public XPathException(Throwable cause) {
super();
this.cause = cause;
if ( cause == null ) {
throw new NullPointerException ( "cause can't be null");
}
}
/**
* <p>Get the cause of this XPathException.</p>
*
* @return Cause of this XPathException.
*/
public Throwable getCause() {
return cause;
}
/**
* <p>Print stack trace to specified <code>PrintStream</code>.</p>
*
* @param s Print stack trace to this <code>PrintStream</code>.
*/
public void printStackTrace(java.io.PrintStream s) {
if (getCause() != null) {
getCause().printStackTrace(s);
s.println("--------------- linked to ------------------");
}
super.printStackTrace(s);
}
/**
* <p>Print stack trace to <code>System.err</code>.</p>
*/
public void printStackTrace() {
printStackTrace(System.err);
}
/**
* <p>Print stack trace to specified <code>PrintWriter</code>.</p>
*
* @param s Print stack trace to this <code>PrintWriter</code>.
*/
public void printStackTrace(PrintWriter s) {
if (getCause() != null) {
getCause().printStackTrace(s);
s.println("--------------- linked to ------------------");
}
super.printStackTrace(s);
}
}