voldemort/voldemort — pull request #79 by ept (2012-06-02 08:07:47+00:00)
Title: NullPointerException while swapping to new version of read-only store

ReadOnlyUtils.getVersionDirs returns null if storeDir does not exist. I don't yet know how it could get into a state where it thinks the directory doesn't exist, but the NPE is obscuring the actual cause, so I'm fixing that first.