jodd-http/src/main/java/jodd/http/HttpResponse.java
public HttpResponse unzip() {
		String contentEncoding = contentEncoding();

		if (contentEncoding != null && contentEncoding().equals("gzip")) {
			if (body != null) {
				headerRemove(HEADER_CONTENT_ENCODING);
				try {
					ByteArrayInputStream in = new ByteArrayInputStream(body.getBytes(StringPool.ISO_8859_1));
					GZIPInputStream gzipInputStream = new GZIPInputStream(in);

					ByteArrayOutputStream out = new ByteArrayOutputStream();

					StreamUtil.copy(gzipInputStream, out);

					body(out.toString(StringPool.ISO_8859_1));
				} catch (IOException ioex) {
					throw new HttpException(ioex);
				}
			}
		}
		return this;
	}
public HttpResponse unzip() {
		String contentEncoding = contentEncoding();

		if (contentEncoding != null && contentEncoding().equals("gzip")) {
			if (body != null) {
				headerRemove(HEADER_CONTENT_ENCODING);
				try {
					ByteArrayInputStream in = new ByteArrayInputStream(body.getBytes(StringPool.ISO_8859_1));
					GZIPInputStream gzipInputStream = new GZIPInputStream(in);

					ByteArrayOutputStream out = new ByteArrayOutputStream();

					StreamUtil.copy(gzipInputStream, out);

					body(out.toString(StringPool.ISO_8859_1));
				} catch (IOException ioex) {
					throw new HttpException(ioex);
				}
			}
		}
		return this;
	}
Unzips GZip-ed body content, removes the content-encoding header
and sets the new content-length value.