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ClassNotFoundException.java: New Classpath version.

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

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

From-SVN: r54713
This commit is contained in:
Nathanael Nerode 2002-06-17 19:15:22 +00:00 • committed by Tom Tromey
parent 7f11f1f9ac
commit 8f7dfb539f
2 changed files with 65 additions and 111 deletions
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4
libjava/ChangeLog
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@ -1,3 +1,7 @@
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> 2002-06-17 Nathanael Nerode <neroden@twcny.rr.com>
* java/rmi/activation/ActivateFailedException.java: Remerge from * java/rmi/activation/ActivateFailedException.java: Remerge from

172
libjava/java/lang/ClassNotFoundException.java
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@ -1,6 +1,5 @@
/* ClassNotFoundException.java -- exception thrown when attempting to load /* ClassNotFoundException.java -- thrown when class definition cannot be found
a class when no definition for the class can be found. Copyright (C) 1998, 2002 Free Software Foundation, Inc.
Copyright (C) 1998 Free Software Foundation, Inc.
This file is part of GNU Classpath. 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 it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option) the Free Software Foundation; either version 2, or (at your option)
any later version. any later version.
GNU Classpath is distributed in the hope that it will be useful, but GNU Classpath is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
@ -39,137 +38,88 @@ exception statement from your version. */
package java.lang; 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 * Thrown when a class is requested by reflection, but the class definition
* by another in order to deal with exceptional conditions. This * cannot be found. This exception is often chained from another Throwable.
* 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.
* *
* @since JDK 1.0
*
* @author Brian Jones * @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 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+.
*/
private static final long serialVersionUID = 9176873029745254542L;
/**
* The cause of this exception (duplicates the one stored in Throwable).
*
* @serial the exception cause
* @since 1.2
*/
private final Throwable ex;
/**
* Create an exception without a message. Note that this initializes the
* cause to null.
*/ */
public ClassNotFoundException() public ClassNotFoundException()
{ {
super(); this(null, null);
} }
/** /**
* Create an exception with a message. * Create an exception with a message. Note that this initializes the
* cause to null.
*
* @param s the message
*/ */
public ClassNotFoundException(String s) public ClassNotFoundException(String s)
{ {
super(s); this(s, null);
} }
/** /**
* Create an exception with a message and include the exception * Create an exception with a message and chain it to the exception
* which occurred while loading the class. * which occurred while loading the class.
* *
* @param ex the exception which occurred while loading the class * @param s the message
* * @param ex the chained exception
* @since JDK 1.2 * @since 1.2
*/ */
public ClassNotFoundException(String s, Throwable ex) public ClassNotFoundException(String s, Throwable ex)
{ {
super(s); super(s, ex);
this.ex = ex; this.ex = ex;
} }
/** /**
* Returns the exception which occurred while loading the class, * Returns the exception which occurred while loading the class,
* otherwise returns null. * otherwise returns null. This is a legacy method; the preferred choice
* * now is {@link Throwable#getCause()}.
* @since JDK 1.2 *
* @return the cause of this exception
* @since 1.2
*/ */
public Throwable getException() public Throwable getException()
{ {
return ex; return ex;
} }
/** /**
* Print a stack trace of the exception that occurred. * Returns the exception which occurred while loading the class,
* otherwise returns null.
*
* @return the cause of this exception
* @since 1.4
*/ */
public void printStackTrace() public Throwable getCause()
{ {
if (ex == null) return ex;
{ }
super.printStackTrace();
}
else
{
ex.printStackTrace();
}
}
/**
* Print a stack trace of the exception that occurred to
* the specified <code>PrintStream</code>.
*/
public void printStackTrace(PrintStream ps)
{
if (ex == null)
{
super.printStackTrace(ps);
}
else
{
ex.printStackTrace(ps);
}
}
/**
* Print a stack trace of the exception that occurred to
* the specified <code>PrintWriter</code>.
*/
public void printStackTrace(PrintWriter pw)
{
if (ex == null)
{
super.printStackTrace(pw);
}
else
{
ex.printStackTrace(pw);
}
}
/**
* Serialize the object in a manner binary compatible with the JDK 1.2
*/
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);
}
} }