Hi,
Redhat recently made a change to their java-1.7.0-openjdk package and 
the new package provides the 'java' virtual dependency and no longer 
provides the 'java7' virtual dependency.
Their errata page: https://rhn.redhat.com/errata/RHBA-2013-1611.html
The removal of the java7 virtual dependency breaks several Open Science 
Grid packages that depend on it. We're still trying to come up with a 
workaround; can you tell us when that change would make it into SL 6 so 
we know how long we have?

Thanks,
-Mat

-- 
-Matyas Selmeci
Open Science Grid Software Team
Center for High Throughput Computing
University of Wisconsin-Madison Department of Computer Sciences