pentaho/pentaho-platform — pull request #1605 by mdamour1976 (2014-06-04 21:32:17+00:00)
Title: [BISERVER-11606] File and Folder names do not work correctly when they start or end with a colon

This is a workaround for a bug in commons io not handling colons in filenames. The effect has no change in the ask "getPrefixLength" nor is the replaced string ever used outside of the ask for the prefix length.