return null;
SVNLogClient client = createSVNLogClient(); try { client.doAnnotate(new File(path).getAbsoluteFile(), SVNRevision.UNDEFINED, SVNConverterUtil.getSVNRevision(revisionStart), SVNConverterUtil.getSVNRevision(revisionEnd), new ISVNAnnotateHandler(){ public void handleLine(Date date, long revision, String author, String line) {  } } ); } catch (SVNException e) { throwException(e); } return new byte[]{};
    public byte[] blame(String path, Revision revisionStart, Revision revisionEnd) throws ClientException {        // TODO Auto-generated method stub        return null;    }