Commit 8f7dfb53 by Nathanael Nerode Committed by Tom Tromey

ClassNotFoundException.java: New Classpath version.

2002-06-17  Nathanael Nerode  <neroden@twcny.rr.com>

	* java/lang/ClassNotFoundException.java: New Classpath version.

From-SVN: r54713
parent 7f11f1f9
2002-06-17 Nathanael Nerode <neroden@twcny.rr.com>
* java/lang/ClassNotFoundException.java: New Classpath version.
2002-06-17 Nathanael Nerode <neroden@twcny.rr.com>
* java/rmi/activation/ActivateFailedException.java: Remerge from
Classpath version.
* java/rmi/activation/ActivationException.java: Ditto.
......
/* ClassNotFoundException.java -- exception thrown when attempting to load
a class when no definition for the class can be found.
Copyright (C) 1998 Free Software Foundation, Inc.
/* ClassNotFoundException.java -- thrown when class definition cannot be found
Copyright (C) 1998, 2002 Free Software Foundation, Inc.
This file is part of GNU Classpath.
......@@ -8,7 +7,7 @@ GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Classpath is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
......@@ -39,137 +38,88 @@ exception statement from your version. */
package java.lang;
import java.io.ObjectOutputStream;
import java.io.ObjectInputStream;
import java.io.IOException;
import java.io.PrintStream;
import java.io.PrintWriter;
/**
* Exceptions may be thrown by one part of a Java program and caught
* by another in order to deal with exceptional conditions. This
* exception can by thrown by specific methods of <code>ClassLoader</code>
* and <code>Class</code> when attempting to load a class when no definition
* for the specified class can be found.
* Thrown when a class is requested by reflection, but the class definition
* cannot be found. This exception is often chained from another Throwable.
*
* @since JDK 1.0
*
* @author Brian Jones
* @author Eric Blake <ebb9@email.byu.edu>
* @see Class#forName(String)
* @see ClassLoader#findSystemClass(String)
* @see ClassLoader#loadClass(String, boolean)
* @status updated to 1.4
*/
public class ClassNotFoundException extends Exception
{
static final long serialVersionUID = 9176873029745254542L;
private Throwable ex = null;
/**
* Create an exception without a message.
* Compatible with JDK 1.0+.
*/
public ClassNotFoundException()
{
super();
}
private static final long serialVersionUID = 9176873029745254542L;
/**
* Create an exception with a message.
*/
public ClassNotFoundException(String s)
{
super(s);
}
/**
* Create an exception with a message and include the exception
* which occurred while loading the class.
*
* @param ex the exception which occurred while loading the class
* The cause of this exception (duplicates the one stored in Throwable).
*
* @since JDK 1.2
* @serial the exception cause
* @since 1.2
*/
public ClassNotFoundException(String s, Throwable ex)
{
super(s);
this.ex = ex;
}
private final Throwable ex;
/**
* Returns the exception which occurred while loading the class,
* otherwise returns null.
*
* @since JDK 1.2
* Create an exception without a message. Note that this initializes the
* cause to null.
*/
public Throwable getException()
{
return ex;
}
public ClassNotFoundException()
{
this(null, null);
}
/**
* Print a stack trace of the exception that occurred.
* Create an exception with a message. Note that this initializes the
* cause to null.
*
* @param s the message
*/
public void printStackTrace()
{
if (ex == null)
{
super.printStackTrace();
}
else
{
ex.printStackTrace();
}
}
public ClassNotFoundException(String s)
{
this(s, null);
}
/**
* Print a stack trace of the exception that occurred to
* the specified <code>PrintStream</code>.
* Create an exception with a message and chain it to the exception
* which occurred while loading the class.
*
* @param s the message
* @param ex the chained exception
* @since 1.2
*/
public void printStackTrace(PrintStream ps)
{
if (ex == null)
{
super.printStackTrace(ps);
}
else
{
ex.printStackTrace(ps);
}
}
public ClassNotFoundException(String s, Throwable ex)
{
super(s, ex);
this.ex = ex;
}
/**
* Print a stack trace of the exception that occurred to
* the specified <code>PrintWriter</code>.
* Returns the exception which occurred while loading the class,
* otherwise returns null. This is a legacy method; the preferred choice
* now is {@link Throwable#getCause()}.
*
* @return the cause of this exception
* @since 1.2
*/
public void printStackTrace(PrintWriter pw)
{
if (ex == null)
{
super.printStackTrace(pw);
}
else
{
ex.printStackTrace(pw);
}
}
public Throwable getException()
{
return ex;
}
/**
* Serialize the object in a manner binary compatible with the JDK 1.2
* Returns the exception which occurred while loading the class,
* otherwise returns null.
*
* @return the cause of this exception
* @since 1.4
*/
private void writeObject(java.io.ObjectOutputStream s)
throws IOException
{
ObjectOutputStream.PutField oFields;
oFields = s.putFields();
oFields.put("ex", this.ex);
s.writeFields();
}
/**
* Deserialize the object in a manner binary compatible with the JDK 1.2
*/
private void readObject(java.io.ObjectInputStream s)
throws IOException, ClassNotFoundException
{
ObjectInputStream.GetField oFields;
oFields = s.readFields();
ex = (Throwable)oFields.get("ex", (Throwable)null);
}
public Throwable getCause()
{
return ex;
}
}
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