String hiddenCols = (String) jvSettingsJson.get("hiddenCols");
if(hiddenCols != null && !hiddenCols.isEmpty()){
columnSelection = new ColumnSelection();
String[] rangeStrings = hiddenCols.split(";");
for(String rangeString : rangeStrings){
String[] range = rangeString.split("-");
String hiddenCols = (String) jvSettingsJson.get("hiddenCols");
if(hiddenCols != null && !hiddenCols.isEmpty()){
columnSelection = new ColumnSelection();
String[] rangeStrings = hiddenCols.split(";");
for(String rangeString : rangeStrings){
String[] range = rangeString.split("-");