src/main/java/io/devnulllabs/openjava/ptree/ParseTreeException.java


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/** This subclass of symbol represents (at least) terminal symbols returned
 *  by the scanner and placed on the parse stack.  At present, this
 *  class does nothing more than its super class.
 *
 * @see java_cup.runtime.symbol
 * @version last updated: 06/11/97
 * @author  Michiaki Tatsubori
 */
package io.devnulllabs.openjava.ptree;


import java.io.PrintStream;
import java.io.PrintWriter;


public class ParseTreeException extends Exception
{
    private Exception ex = null;

    public ParseTreeException() {
    }

    public ParseTreeException( Exception e ) {
        super( e.getMessage() );
    this.ex = e;
    }

    public ParseTreeException( String str ) {
        super( str );
    }

    public void printStackTrace( PrintWriter o ) {
        if (ex != null) {
        ex.printStackTrace( o );
    } else {
        super.printStackTrace( o );
    }
    }

    public void printStackTrace( PrintStream o ) {
        if (ex != null) {
        ex.printStackTrace( o );
    } else {
        super.printStackTrace( o );
    }
    }
}