@Override
public RefreshUserToGroupsMappingsResponse refreshUserToGroupsMappings(
RefreshUserToGroupsMappingsRequest request) throws YarnException,
IOException {
RefreshUserToGroupsMappingsRequestProto requestProto =
((RefreshUserToGroupsMappingsRequestPBImpl)request).getProto();
try {
return new RefreshUserToGroupsMappingsResponsePBImpl(
proxy.refreshUserToGroupsMappings(null, requestProto));
} catch (ServiceException e) {