question: private void validateHasChecksumFile ( File archiveFile ) throws InvalidArchiveUpdateException { try { resolveChecksumFile ( extractFileToDirectory ( archiveFile , CHECKSUMS_FILE_IN_OPENIDM ) ) ; } catch ( Exception e ) { throw new InvalidArchiveUpdateException ( archiveFile . getName ( ) , "The archive " + archiveFile . getName ( ) + " does not appear to contain a checksums file." , e ) ; } }
target:  Check if the checksums file in the zip file is present and can be resolved.