How to use

persistAttributeValue

method

in

org.keycloak.models.jpa.GroupAdapter

@Override
public void setAttribute(String name, List<String> values) {
  // Remove all existing
  removeAttribute(name);
  // Put all new
  for (String value : values) {
    persistAttributeValue(name, value);
  }
}

@Override
public void setSingleAttribute(String name, String value) {
  boolean found = false;
  List<GroupAttributeEntity> toRemove = new ArrayList<>();
  for (GroupAttributeEntity attr : group.getAttributes()) {
    if (attr.getName().equals(name)) {
      if (!found) {
        attr.setValue(value);
        found = true;
      } else {
        toRemove.add(attr);
      }
    }
  }
  for (GroupAttributeEntity attr : toRemove) {
    em.remove(attr);
    group.getAttributes().remove(attr);
  }
  if (found) {
    return;
  }
  persistAttributeValue(name, value);
}