### Question:
Hash { public static String blake2b(String hexInput) { byte[] bytes = Numeric.hexStringToByteArray(hexInput); byte[] result = blake2b(bytes); return Numeric.toHexString(result); } private  Hash(); static String blake2b(String hexInput); static byte[] blake2b(byte[] input, int offset, int length); static byte[] blake2b(byte[] input); static String blake2bString(String utf8String); static String blake160(String hexInput);  }### Answer:
@Test public void testBlake2b() { Assertions.assertEquals( Hash.blake2b(""), "0x44f4c69744d5f8c55d642062949dcae49bc4e7ef43d388c5a12f42b5633d163e"); Assertions.assertEquals( Hash.blake2bString("The quick brown fox jumps over the lazy dog"), "0xabfa2c08d62f6f567d088d6ba41d3bbbb9a45c241a8e3789ef39700060b5cee2"); }