Question: Help me about this file com.maplesoft.externalcall.MapleException where?

import com.maplesoft.openmaple.*;

import com.maplesoft.externalcall.MapleException;

class test

{

    public static void main( String args[] )

    {

        String a[];

        Engine t;

        int i;

        a = new String[1];

        a[0] = "java";

        try

        {

            t = new Engine( a, new EngineCallBacksDefault(), null, null );

            t.evaluate( "int( x,x );" );

        }

        catch ( MapleException e )

        {

            System.out.println( "An exception occurred\n" );

            return;

        }

        System.out.println( "Done\n" );

    }

}

This code error import com.maplesoft.externalcall.MapleException in java?

Please help me.

http://www.maplesoft.com/support/help/Maple/view.aspx?path=OpenMaple/Java/Examples

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