[newbie] Axis 1.1 vs JAXM + SAAJ

Hi, I think both Axis 1.1 and JAXM + SAAJ (in Sun's JWSDP 1.3) implement Simple Object Access Protocol (SOAP) 1.1 with Attachments messaging. So what are the advantages/disadvantages of each package? in terms of performance? functionality? flexibility? Thanks for any feedback.

[newbie] Serialize JavaBean to a SOAP message

Is there a way to serialize a JavaBean to a SOAPmessage? Take the DelayedStockQuote as an example, can i create 2 classes: QuoteRequest (with an string attribute 'symbol') and QuoteResponse (with an float attribute 'result'). And I can use AXIS to serialize the QuoteRequest to a SOAP message an