I looked at the org.apache.karaf.features.obr.cfg file in my apache-servicemix-4.4.1-fuse-07-11/etc/ directory and there is a strange comment regarding the resolveOptionalImports property :
saying that the default value is "false" whereas the default value is set to "true" when installing a brand new Fuse
So what is the real default value then ?
I think here the comment like
Defines whether or not the features OBR resolver has to resolve optional imports as well. The default value is
false (do not attempt to resolve optional imports).
actually means if you didn't specify the resolveOptionalImports value, by default it's false.
But we specify it as true now in FUSE ESB.