public void readHeaderLine(String line) {
if (header == null) {
header = new FeatureFileHeader();
}
if (line.startsWith("#track") || line.startsWith("##track")) {
trackProperties = new TrackProperties();
ParsingUtils.parseTrackLine(line, trackProperties);
header.setTrackProperties(trackProperties);
} else if (line.startsWith("##gff-version") && line.endsWith("3")) {
helper = new GFF3Helper();
} else if (line.startsWith("#nodecode") || line.startsWith("##nodecode")) {