nl: return the job prefix which is the same as the file name . concode_field_sep Logger log concode_elem_sep Path file concode_elem_sep String prefix concode_elem_sep FileChannel channel concode_elem_sep FileLock lock concode_field_sep JobPrefixFile tryFromExistingFile concode_elem_sep void release concode_elem_sep void deleteIfExists concode_elem_sep JobPrefixFile create concode_elem_sep JobPrefixFile create concode_elem_sep void delete concode_elem_sep void close concode_elem_sep void close
code: String function ( ) { return prefix ; }