useage of -xbootclasspath in run dialog of community source

Still trying to integrate aj.bat with idea.bat and in the process decided to try to understgand what it is that Run actually  does when it launches the built community from inside the IDE.

So of course I looked at Run->edit Configurations just  to see what I could see using  and what I saw was:

under VM Options:
-ea -Xbootclasspath/p:../out/classes/production/boot  -Xmx192m -Didea.is.internal=true -XX:MaxPermSize=150m


which tells me that when community is run it prepends to the defaultbootstrap class path the directory
../out/classes/production/boot

which actually, does not exist, although it once did in earlier versions of the community source.

So I guess the VM ignores this without blowing up.

This is obselete, yes?