Java Security

Hi all, I'm trying to make my client-side java application decrypt an encrypted string generated on a web server (PHP code).
The PHP coding function is this: (I can attach here or you can find the complete code inside the "phpMyAdmin" project)

function PMA_blowfish_encrypt($data, $secret) {
    $pma_cipher = new Horde_Cipher_blowfish;
    $encrypt = '';
    for ($i=0; $i<strlen($data); $i+=8) {
        $block = substr($data, $i, 8);
        if (strlen($block) < 8) {
            $block = full_str_pad($block, 8, "\0", 1);
        }
        $encrypt .= $pma_cipher->encryptBlock($block, $secret);
    }
    return base64_encode($encrypt);
}

While this is the JAVA decrypting function i use:

/*
     * This actually does the encryption/decryption.
     */
    private static String crypt(String input, String key, int mode)
            throws Exception {

        byte[] raw = key.getBytes();
        SecretKeySpec secretkeySpec = new SecretKeySpec(raw, "Blowfish");

        // create a cipher based upon Blowfish
        Cipher cipher = Cipher.getInstance("Blowfish");
        

        // initialise cipher to with secret key
        cipher.init(mode, secretkeySpec);

        // encrypt-decrypt message
        if(mode == Cipher.ENCRYPT_MODE)
            return(new String(cipher.doFinal(input.getBytes())));
        else
            return(new String(cipher.doFinal(input.getBytes())));

    }

Now I'm able to decode the base64 encoding but decrypting calling the above function
gives me this error:

Exception in thread "main" javax.crypto.BadPaddingException: Given final block not properly padded
        at com.sun.crypto.provider.SunJCE_f.b(DashoA13*..)
        at com.sun.crypto.provider.SunJCE_f.b(DashoA13*..)
        at com.sun.crypto.provider.BlowfishCipher.engineDoFinal(DashoA13*..)
        at javax.crypto.Cipher.doFinal(DashoA13*..)
        at esempi.BlowfishCipher.crypt(BlowfishCipher.java:95)
        at esempi.BlowfishCipher.main(BlowfishCipher.java:48)
Java Result: 1

What's the problem? The fact that PHP code uses "\0" padding while in Java I haven't specified it?
I've tried to reverse-engeneer in Java the PHP encoding and I had success (only with a 8 characters long word), given that
calling:

crypt(<8 characters word>, <secret_key>, Cipher.ENCRYPT_MODE).substring(0, 8));

gives me the exact same encrypted string the server generates.
Thanks in advance for your help
Emilio