I've never quite gotten a clear picture of how logging is done in Cayenne. If
I follow the examples I will get console log output of queries. That's good.
If, on the other hand, I decide to write a program where I try to explicitly
use the logging facility, I get complaints like the following:
log4j:WARN No appenders could be found for logger (root).
log4j:WARN Please initialize the log4j system properly.
What, may I ask, is required to "initialize the log4j system properly" and how
do I, for instance, cause log.debug( "Hello" ) to cause "Hello" to appear in
the log? Or, am I doing it totally wrong and I need to do something else?
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