public static void unzip(File zippedFile, File destDir) {
		try {
			unzip(new FileInputStream(zippedFile), destDir, Charset.defaultCharset().name());
		} catch (FileNotFoundException e) {
			throw processException(e);
		}
	}
Unzip the given zipped file into destination directory.

@param zippedFile zipped file
@param destDir    destination directory
ngrinder-core/src/main/java/org/ngrinder/common/util/CompressionUtils.java