Error logging with embeded Derby?

[Barnet Wagman]

Error logging does not seem to be enabled with an embeded Derby system. 
Does this need to be turned on explicitly?  I haven't found anything 
about this in the documentation (which of course doesn't necesarily mean 
it isn't there).

I'm gettting errors from an embedded Derby app; it appears that 
something is closing the connection in the middle of an operation (code 
40000 errors).  I believe I've read that these types of errors should 
get logged, but it turns out that I do not have an derby.log file at 
all. I've tried explicitly specifying the logDevice when the database is 
created, but there still is no log file.

Thanks,
bw