Ok, got the problem resolved.
I had to actually put -D in front of the optons in the VM arguments window.
As in:
Optional Java VM arguments:
———————————-
-Dlog4j.configuration=file:///c:/Dev/java/temp/log4jVLJConfigDebug.xml
-Dweblogic.Name=myserver
-Dweblogic.ProductionModeEnabled=false
Could be viewed as a minor usability issue, since it is kind of redundant.
Thanks for everybody’s help!