classnotfoundexception.java

一个开源的JAVA虚拟机

/*
    libaegisvm - The Aegis Virtual Machine for executing Java bytecode
    Copyright (C) 2001-2002  Philip W. L. Fong

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library 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
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

*/

package java.lang;

/**
 * \todo Make sure that an enclosing exception is installed when
 *       classloading fails.
 */

public class ClassNotFoundException extends Exception {
    private Throwable ex;
    public ClassNotFoundException() {
	this(null);
    }
    public ClassNotFoundException(String s) {
	this(s, null);
    }
    public ClassNotFoundException(String s, Throwable ex) {
	super(s);
	this.ex = ex;
    }
    public Throwable getException() {
	return ex;
    }
    public void printStackTrace() {
	printStackTrace(System.err);
    }
    public void printStackTrace(java.io.PrintStream ps) {
	if (ex == null)
	    super.printStackTrace(ps);
	else
	    ex.printStackTrace(ps);
    }
    public void printStackTrace(java.io.PrintWriter pw) {
	if (ex == null)
	    super.printStackTrace(pw);
	else
	    ex.printStackTrace(pw);
    }
}