Java ExifTool Clear Attempt

public void printGpsData()
{
    try
    {
        Tag[] tags = new Tag[]
        {
            Tag.GPS_ALTITUDE,
            Tag.GPS_ALTITUDE_REF,
            Tag.GPS_IMG_DIRECTION,
            Tag.GPS_IMG_DIRECTION_REF,
            Tag.GPS_LATITUDE,
            Tag.GPS_LATITUDE_REF,
            Tag.GPS_LONGITUDE,
            Tag.GPS_LONGITUDE_REF
        };
        HashMap<Tag, String> gpsData = (HashMap<Tag, String>) exifTool.getImageMeta(image, tags);

    System.out.println("Altitude: " + gpsData.get(Tag.GPS_ALTITUDE));
    System.out.println("Altitude Ref: " + gpsData.get(Tag.GPS_ALTITUDE_REF));
    System.out.println("Image Direction: " + gpsData.get(Tag.GPS_IMG_DIRECTION));
    System.out.println("Image Direction Ref: " + gpsData.get(Tag.GPS_IMG_DIRECTION_REF));
    System.out.println("Latitude: " + gpsData.get(Tag.GPS_LATITUDE));
    System.out.println("Latitude Ref: " + gpsData.get(Tag.GPS_LATITUDE_REF));
    System.out.println("Longitude: " + gpsData.get(Tag.GPS_LONGITUDE));
    System.out.println("Longitude Ref: " + gpsData.get(Tag.GPS_LONGITUDE_REF));

        HashMap<Tag,String> newGpsData = gpsData;
        for(Tag tag : tags)
        {
            newGpsData.put(tag, "");
        }//for
        exifTool.setImageMeta(image, newGpsData);
        View.note("Values set", false);
    }//try
    catch (IllegalArgumentException | SecurityException | IOException ex)
    {
        View.printException(ex);
    }//catch
}//public void printGpsData()