cannot send mms message

[komomo]

I am writing a MIDlet to send a mms message.
The IDE I am using is eclipse-pulsar-galileo-win32.
The skd i am using is Java(TM) ME platform SDK 3.0.
The emulator i am using porvides WMA 2.0.
But my eclipse does not know MessageConnection.MULTIPART_MESSAGE.
There is an error in this line.
MultipartMessage msg=(MultipartMessage)connection.newMessage(MessageConnection.MULTIPART_MESSAGE);

here is my coding. What causes the problem?

public class MMS implements Runnable {

	public void run() {
		MessageConnection connection=null;
		
		
		try {
			connection=(MessageConnection) Connector.open("mms://987654321",Connector.READ_WRITE);
			MultipartMessage msg=(MultipartMessage) connection.newMessage(MessageConnection.MULTIPART_MESSAGE);
			
			msg.addAddress("cc", "mms://987654321");
			MessagePart part1=new MessagePart("hello".getBytes(),0,5,"text",String.valueOf(1),null,"UTF-8");
			MessagePart part2=new MessagePart("When".getBytes(),0,4,"text",String.valueOf(2),null,"UTF-8");
			InputStream is = getClass().getResourceAsStream("star.png");
			byte[] bImage = new byte[is.available()];
			is.read(bImage);
			//MessagePart part3=new MessagePart(is,"image/png",String.valueOf(3),null,null); 
			//MessagePart part3=new MessagePart(bImage,0,bImage.length,"image/png",String.valueOf(3),null,null);
			msg.addMessagePart(part1);
			msg.addMessagePart(part2);
			//msg.addMessagePart(part3);
			msg.setStartContentId("1");
			msg.setSubject("Testing");
			connection.send(msg);
		} catch (IOException e){ 
			// TODO Auto-generated catch -block
			e.printStackTrace();
		}
	}

}