J2ME change icon

Hello is there a way to change the icon of a J2ME application while on the background to do some sort of notification. I am trying to achieve something similar to what de BBChat does on the BlackBerry devices. Thanks in开发者_JAVA百科 advance.

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To change the icon J2ME application set MIDlet-Icon property in JAD file
for example

MIDlet-Icon: /com/abc/icons/iconfile.png  

And can you explain

something similar to what de BBChat does on the BlackBerry devices