How to know if Java Web Start has updated the application

Hello everyone,

Is there a way to know whether Java web start has updated jar files ?

Actually, what I'd like to do is to make my application display a special screen ONLY IF the application has been updated. Therefore, I need to know if java web start updated the jars.

I've seen that to each jar file on the server correspond 3 jar files on the client :

RC*.jar, RM*.jar and RT*.jar.

What information do RM and RT jar files contain ? Any information that could help me know when the last update has been done ?

Or else, can I register as a listener of JWS downloader ?

Thanks for your help,

Alex.

[655 byte] By [opt_utca] at [2007-10-2 4:43:37]