new AES library

Hi all,
I was not able to produce the results like in java: What I tried was

// encrypt:
SecretKeySpec secretKeySpec = new SecretKeySpec(key128, "AES");
Cipher cipher = Cipher.getInstance("AES/ECB/NoPadding");
cipher.init(Cipher.ENCRYPT_MODE, secretKeySpec);
byte[] encrypted = cipher.doFinal(source);

// decrypt ( in a different method)
SecretKeySpec secretKeySpec = new SecretKeySpec(key128, "AES");
Cipher cipher = Cipher.getInstance("AES/ECB/NoPadding");
cipher.init(Cipher.DECRYPT_MODE, secretKeySpec);
byte[] decrypted = cipher.doFinal(encrypted);

Although the java code does encrypt and decrypt it correctly, the encrypted array is different from the AES library's result.
Did anyone else try to encrypt on avr and decrypt in java?
Cheers
Jochen