/** * Zips byte array. * * @param input Input bytes. * @param initBufSize Initial buffer size. * @return Zipped byte array. * @throws IOException If failed. */ public static byte[] zipBytes(byte[] input, int initBufSize) throws IOException { ByteArrayOutputStream bos = new ByteArrayOutputStream(initBufSize); try (ZipOutputStream zos = new ZipOutputStream(bos)) { ZipEntry entry = new ZipEntry(""); try { entry.setSize(input.length); zos.putNextEntry(entry); zos.write(input); } finally { zos.closeEntry(); } } return bos.toByteArray(); }