in src/main/java/com/epam/digital/data/platform/integration/idm/service/KeycloakIdmService.java [165:169]
private boolean hasFullNameAttribute(UserRepresentation user) {
var attribute = user.getAttributes();
return Objects.nonNull(attribute) && Objects
.nonNull(attribute.get(KeycloakSystemAttribute.FULL_NAME_ATTRIBUTE));
}