You should not use a4j:support nested to h:command* because two requests fired the same time. Whole page will be updated again after ajax update according to your code. So it changes nothing.
but there is no rerender for h:commandbutton..
i want to rerender the image when clicking the button.
but a4j:commandbutton is not working when using s:fileUpload
how to solve this
did you resolve this?
i am having same exact issue with a:commandbutton and s:fileUpload. I am wondering if it is even possible.