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This is a backport of OpenJFX 8 to run on Java 7.
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/*
 * Copyright (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */

package netscape.javascript;


/**
 *  Thrown when an exception is raised in the JavaScript engine.
 * 
 *
 *  Much of the functionality in this class is deprecated as it is
 * not portable between web browsers. The only functionality that
 * should be relied upon is the throwing of this exception and calls
 * to printStackTrace(). 
 */
public class JSException extends RuntimeException {

    // Exception type supported by JavaScript 1.4 in Navigator 5.0.
    //
    /** @deprecated  Not portable between web browsers. */
    public static final int EXCEPTION_TYPE_EMPTY = -1;
    /** @deprecated  Not portable between web browsers. */
    public static final int EXCEPTION_TYPE_VOID = 0;
    /** @deprecated  Not portable between web browsers. */
    public static final int EXCEPTION_TYPE_OBJECT = 1;
    /** @deprecated  Not portable between web browsers. */
    public static final int EXCEPTION_TYPE_FUNCTION = 2;
    /** @deprecated  Not portable between web browsers. */
    public static final int EXCEPTION_TYPE_STRING = 3;
    /** @deprecated  Not portable between web browsers. */
    public static final int EXCEPTION_TYPE_NUMBER = 4;
    /** @deprecated  Not portable between web browsers. */
    public static final int EXCEPTION_TYPE_BOOLEAN = 5;
    /** @deprecated  Not portable between web browsers. */
    public static final int EXCEPTION_TYPE_ERROR = 6;

    /**
     *  Constructs a JSException object.
     * 
     */
    public JSException() {
        this(null);
    }

    /**
     *  Construct a JSException object with a detail message.
     * 
     *
     * @param s The detail message
     */
     public JSException(String s)  {
        this(s, null, -1, null, -1);
    }


    /**
     *  Construct a JSException object. This constructor is
     * deprecated as it involves non-portable functionality. 
     *
     * @param s The detail message.
     * @param filename The URL of the file where the error occurred, if possible.
     * @param lineno The line number if the file, if possible.
     * @param source The string containing the JavaScript code being evaluated.
     * @param tokenIndex The index into the source string where the error occurred.
     * @deprecated  Not portable between web browsers.
     */
    public JSException(String s, String filename, int lineno, String source,
                       int tokenIndex)  {
        super(s);
        this.message = s;
        this.filename = filename;
        this.lineno = lineno;
        this.source = source;
        this.tokenIndex = tokenIndex;
        this.wrappedExceptionType = EXCEPTION_TYPE_EMPTY;
    }

    /**
     *  Construct a JSException object. This constructor is
     * deprecated as it involves non-portable functionality. 
     *
     * @param wrappedExceptionType Type of the wrapped JavaScript exception.
     * @param wrappedException JavaScript exception wrapper.
     * @deprecated  Not portable between web browsers.
     */
    public JSException(int wrappedExceptionType, Object wrappedException) {
        this();
        this.wrappedExceptionType = wrappedExceptionType;
        this.wrappedException = wrappedException;
    }

    /**
     *  The detail message. 
     * @deprecated  Not portable between web browsers.
     */
    protected String message = null;

    /**
     *  The URL of the file where the error occurred, if possible. 
     * @deprecated  Not portable between web browsers.
     */
    protected String filename = null;

    /**
     *  The line number if the file, if possible. 
     * @deprecated  Not portable between web browsers.
     */
    protected int lineno = -1;

    /**
     *  The string containing the JavaScript code being evaluated. 
     * @deprecated  Not portable between web browsers.
     */
    protected String source = null;

    /**
     *  The index into the source string where the error occurred. 
     * @deprecated  Not portable between web browsers.
     */
    protected int tokenIndex = -1;

    /**
     *  Type of the wrapped JavaScript exception. 
     * @deprecated  Not portable between web browsers.
     */
    private int wrappedExceptionType = -1;

    /**
     *  JavaScript exception wrapper. 
     * @deprecated  Not portable between web browsers.
     */
    private Object wrappedException = null;

    /**
     *  getWrappedExceptionType returns the int mapping of the type
     * of the wrappedException Object. This method is deprecated as it
     * involves non-portable functionality.  
     *
     * @return int JavaScript exception type.
     * @deprecated  Not portable between web browsers.
     */
    public int getWrappedExceptionType() {
        return wrappedExceptionType;
    }

    /**
     *  Returns the wrapped JavaScript exception. This method is
     * deprecated as it involves non-portable functionality.  
     *
     * @return Object JavaScript exception wrapper.
     * @deprecated  Not portable between web browsers.
     */
    public Object getWrappedException() {
        return wrappedException;
    }
}