There is a topic in the JavaRanch forum for discussing items like JavaRanch (which may be why the forum is called "JavaRanch" and not "EJB Certification (SCBCD)" ). It is generally a good idea to check in the JavaRanch forum from time to time (especially after experiencing a problem) as that is where all general announcements are made.
For what its worth, if software caches messages in memory, and the server crashes, then messages will be lost (note the "if" there - I have not tried to read the source code to find out if this is the case for UBB).
Likewise if the hard drive crashed, then data will be lost - this site is not a commercial site, and so far nobody has volunteered to purchase a RAID system (yes - you could be the first to offer ).
The soul is dyed the color of its thoughts. Think only on those things that are in line with your principles and can bear the light of day. The content of your character is your choice. Day by day, what you do is who you become. Your integrity is your destiny - it is the light that guides your way. - Heraclitus
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