flash on 2013-8-2

/**
 * Copyright benjamin.c.burns ( http://wonderfl.net/user/benjamin.c.burns )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/jYIm
 */

//written to troubleshoot the issue in this StackOverflow question:
//http://stackoverflow.com/questions/4456438/how-can-i-pass-the-string-null-through-wsdl-soap-from-as3-to-coldfusion-web/18000768

//Filed bug FLEX-33644 in response to these results
package {
    import flash.display.Sprite;
    import flash.text.*;
    import mx.rpc.xml.*;

    public class FlashTest extends Sprite {
        private var myTextBox:TextField = new TextField(); 
        private var myTextBox2:TextField = new TextField();
        private var myTextBox3:TextField = new TextField();
        private var myTextBox4:TextField = new TextField();
        private var myTextBox5:TextField = new TextField();
        private var myTextBox6:TextField = new TextField();
        private var myTextBox7:TextField = new TextField();
        public function FlashTest() {
            myTextBox.width = 400;
            myTextBox2.y = 15;
            myTextBox2.width = 400;
            myTextBox3.y = 30;
            myTextBox3.width = 400;
            myTextBox4.y = 45;
            myTextBox4.width = 400;
            myTextBox5.y = 60;
            myTextBox5.width = 400;
            myTextBox6.y = 75;
            myTextBox6.width = 400;
            myTextBox7.y = 120;
            myTextBox7.width = 400;
            
            addChild(myTextBox);
            addChild(myTextBox2);
            addChild(myTextBox3);
            addChild(myTextBox4);
            addChild(myTextBox5);
            addChild(myTextBox6);
            addChild(myTextBox7);
            
            myTextBox7.text = "See http://stackoverflow.com/q/4456438/203705 and FLEX-33644 for more info."
            
            var s:String = "null";
            
            
            var enc:XMLEncoder = new XMLEncoder();
            var schemaConstants:SchemaConstants = SchemaConstants.getConstants();
            var sm:SchemaMarshaller = new SchemaMarshaller(schemaConstants, SchemaDatatypes.getConstants(schemaConstants.xsdURI));
            var x:XMLList = new XMLList();
            
            myTextBox.text = "Value to encode: " + s;
            myTextBox2.text = "new XMLEncoder().encode(value).toXMLString(): " + enc.encode(s);
            myTextBox3.text = "Encoded value is null? " + (enc.encode(s) === null ? "true" : "false");
            myTextBox4.text = "new XML().appendChild(value).toXMLString(): " + new XML().appendChild(s).toXMLString();
            myTextBox5.text = "SchemaMarshaller.marshall(value): " + sm.marshall(s);
            
            var myXML:XML = new XML();
            myXML.text = s;
            
            myTextBox6.text = "var myXML:XML = new XML(); myXML.text = value; myXML.toString(): " + myXML.toXMLString();

        }
    }
}