loading iterator jars from file:// or http://

[Jonathan Lasko]

My project is loading custom iterator jars from HDFS and have run into 
some VFS problems (e.g. redeploying the same jar to HDFS causes 
NoClassDefFoundErrors due to NPEs in VFS). While one solution may be to 
weed out and eliminate any such "redeploys," I am curious if anyone has 
used contexts to load jars from file:// or http:// locations?

Thanks,
Jonathan