How do I turn off this logging?
Log
Dec 03, 2013 1:23:21 PM com.google.appengine.datanucleus.MetaDataValidator validate
INFO: Performing appengine-specific metadata validation for com.mwv.pic.dto.Study
lib/logging.properties
.level=INFO
# Set the default logging level for ORM, specifically, to WARNING
DataNucleus.level=WARNING
com.google.appengine.datanucleus=WARNING
Run Configurations > Arguments > Program Arguments
-Djava.util.logging.config.file=file:lib/logging.properties
If I put -Djava.util.logging.config.file=file:lib/logging.properties
in VM argument properties, then NOTHING will log!
I think that you will find that DataNucleus JDO (if indeed you are using JDO) depends on the logging technology Apache Log4J.
I use JDO and define DataNucleus Log4J settings in files called "log4j.properties": one for production and one for app building using NetBeans.