Consider the following log snip:

CYKLO-474 assessment for '/sites/wiadomosci.ngo.pl/temp_css/layouts/v4_glowna'
local: exists true, isDirectory true, isFile false, canRead true
servlet: exists false, isDirectory false, isFile true, canRead false
classpath: exists true, isDirectory false, isFile true, canRead true

Another sighting of this bug: When running ledge-components test under maven2, some i18n tests complained that classpath provider has /locale/ but it is not a directory.
This is probably connected to the fact that the Classpath provider did not have the listing available - ledge maven plugin is not available for M2 yet.