private void writeObject(ObjectOutputStream stream) throws IOException {
        stream.defaultWriteObject();
        SerialUtilities.writePaint(this.majorTickPaint, stream);
        SerialUtilities.writeStroke(this.majorTickStroke, stream);
        SerialUtilities.writePaint(this.minorTickPaint, stream);
        SerialUtilities.writeStroke(this.minorTickStroke, stream);
        SerialUtilities.writePaint(this.tickLabelPaint, stream);