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"patch" in java card?!

BluefairyDec 16 2010 — edited Jan 6 2011
Hi there,
I wanted to ask if someone has any information about "patch" concept in the java card technology? I'm not sure if "patch" is a proper word to describe it or not, I mean in the situations that you notice your applet needs an update because of some bug found in it or just because you want to add a capability into your applet how this will be handeled?
Will you just delete your applet and install a new one? As you know this operation(deleting the old applet) will remove all the eeprom and the user data will be lost. If the user data is important to be saved during this update process is there a proper way to save it and just install a new applet into the card?

-Thanks in advance
This post has been answered by safarmer on Dec 16 2010
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Locked due to inactivity on Feb 3 2011
Added on Dec 16 2010