code: public void setLineJoin(@Property.LINE_JOIN String value) {
      jsonObject.addProperty(LineOptions.PROPERTY_LINE_JOIN, value);
    }
docs: Set the LineJoin property
  <p>
  The display of lines when joining.
  </p>
  <p>
  To update the line on the map use {@link LineManager#update(Annotation)}.
  <p>
  
  @param value constant property value for String