java hmac / sha512代

我有这个生成 HMAC 的PHP代码（而不是简单的消息摘要）：

I have this php code which generate a HMAC (and not a simple message digest):

<?php 
$key = "0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF";
$binkey = pack("H*", $key); 
echo strtoupper(hash_hmac('sha512', "ABC", $binkey)); 
?>

使用 ABC 输入其输出为：

100A6A016A4B21AE120851D51C93B293D95B7D8A44B16ACBEFC2D1C9DF02B6F54FA3C2D6802E52FED5DF8652DDD244788A204682D2D1CE861FDA4E67F2792643

我需要在java中克隆它。

And I need to clone it in java.

所以这是我当前的java克隆：

So here is my current java clone :

private String generateHMAC( String datas )
    {

        //                final Charset asciiCs = Charset.forName( "utf-8" );
        Mac mac;
        String result = "";
        try
        {
            byte[] bytesKey = PayboxConstants.KEY.getBytes( );
            final SecretKeySpec secretKey = new SecretKeySpec( bytesKey, "HmacSHA512" );
            mac = Mac.getInstance( "HmacSHA512" );
            mac.init( secretKey );
            final byte[] macData = mac.doFinal( datas.getBytes( ) );
            byte[] hex = new Hex( ).encode( macData );
            result = new String( hex, "ISO-8859-1" );
        }
        catch ( final NoSuchAlgorithmException e )
        {
            AppLogService.error( e );
        }
        catch ( final InvalidKeyException e )
        {
            AppLogService.error( e );
        }
        catch ( UnsupportedEncodingException e )
        {
            AppLogService.error( e );
        }

        return result.toUpperCase( );

    }

但由于相同的输入，它不能完成工作（ ABC）其输出为：

But it does not makes the job because for same input (ABC) its ouput is:

AA6492987D7A7AC81109E877315414806F1973CC47B897ECE713171A25A11B279329B1BFF39EA72A5EFB7EDCD71D1F34D5AAC49999A780BD13F019ED99685B80

我尝试了很多其他java代码，但它们都不是php版本的精确克隆。

I've tries a lot of other java code but none of them was an exact clone of php version.

我做了什么做错了吗？