public static void packEntries(File[] filesToPack, File destZipFile, NameMapper mapper) {
    packEntries(filesToPack, destZipFile, mapper, DEFAULT_COMPRESSION_LEVEL);
  }
public static void packEntries ( File [ ] filesToPack , File destZipFile , NameMapper mapper ) { packEntries ( filesToPack , destZipFile , mapper , DEFAULT_COMPRESSION_LEVEL ) ; }
Compresses the given files into a ZIP file.
<p>
The ZIP file must not be a directory and its parent directory must exist.

@param filesToPack
files that needs to be zipped.
@param destZipFile
ZIP file that will be created or overwritten.
@param mapper
call-back for renaming the entries.