How to use

updateValue

method

in

org.killbill.billing.util.customfield.CustomField

 private void saveValue(MutableIssue issue, String valueToSave, CustomField
    customField) throws FieldLayoutStorageException {

  issue.setCustomFieldValue(customField, valueToSave);

  Map<String, ModifiedValue> modifiedFields = issue.getModifiedFields();

  FieldLayoutItem fieldLayoutItem =
  ComponentManager.getInstance().getFieldLayoutManager().getFieldLayout(issue).getFieldLayoutItem(
      customField);

  DefaultIssueChangeHolder issueChangeHolder = new DefaultIssueChangeHolder();

  final ModifiedValue modifiedValue = (ModifiedValue) modifiedFields.get(customField.getId());

  customField.updateValue(fieldLayoutItem, issue, modifiedValue, issueChangeHolder);
}