Setting Song Lyrics Causes Warning

Hi,

I'm coming across a strange issue that I've narrowed down to setting song lyrics in a ID3v2 tag in MP3 files. The warning :

Oct 24, 2016 5:59:41 PM org.jaudiotagger.tag.datatype.StringFixedLength writeByteArray WARNING: There was a problem writing the following StringFixedlength Field: when converted to bytes has length of:0 but field was defined with length of:3 too short so padding with spaces to make up extra length

Looking at the source this is coming from this method:

public byte[] writeByteArray()

in

StringFixedLength.class

This only happens when writing song lyrics into the MP3, whether I test with 3 words, or entire song lyrics. I have tested on 500+ different Mp3 files, all produce this Warning. I'm guessing this might have something to do with character encoding.

The method I use for settign the lyrics:

               mp3File.getID3v2Tag().deleteField(FieldKey.LYRICS);

                try {
                    mp3File.getID3v2Tag().addField(FieldKey.LYRICS, lyrics);
                } catch (FieldDataInvalidException e) {
                    e.printStackTrace();
                }

I have also tried just using:

mp3File.getID3v2Tag().setField(FieldKey.LYRICS, lyrics);

This produces the same warning.

Some guidance as to what I'm doing wrong would be appreciated, for now, its a warning hence why marked as minor.

Kind regards

Mark

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