code: public static void zipFiles(final ZipFile zipFile4j, final File... toAdd) throws ZipException
  	{
  		zipFiles(zipFile4j, Zip4jConstants.COMP_DEFLATE, Zip4jConstants.DEFLATE_LEVEL_NORMAL,
  			toAdd);
  	}
docs: Adds a file or several files to the given zip file with the parameters
  Zip4jConstants.COMP_DEFLATE for the compression method and
  Zip4jConstants.DEFLATE_LEVEL_NORMAL as the compression level.
  
  @param zipFile4j
  the zip file4j
  @param toAdd
  the to add
  @throws ZipException
  the zip exception