question: detects common xz suffixes in the given filename . concode_field_sep byte[] HEADER_MAGIC concode_elem_sep CachedAvailability cachedXZAvailability concode_elem_sep FileNameUtil fileNameUtil concode_field_sep boolean isXZCompressionAvailable concode_elem_sep String getUncompressedFilename concode_elem_sep String getCompressedFilename concode_elem_sep boolean internalIsXZCompressionAvailable concode_elem_sep boolean matches concode_elem_sep CachedAvailability getCachedXZAvailability concode_elem_sep void setCacheXZAvailablity
target: boolean function ( final String arg0 ) { return fileNameUtil . isCompressedFilename ( arg0 ) ; }