paascloud/paascloud-master · error · MdcBizException

GL99990002

GL99990002

Error message

GL99990002

What it means

MdcAddressServiceImpl.getAddressById throws MdcBizException(GL99990002) when the Wrapper returned by mdcAddressQueryFeignApi.getById(addressId) is null — i.e. the Feign call to the mdc (mall directory center) address service returned no wrapper object at all. GL99990002 is the generic 'MDC service call returned null/failed' code; a non-null but error() wrapper raises MDC10021002 instead.

Solutions

1. Check mdc service health/logs for the getById request corresponding to this addressId
2. Verify the addressId actually exists in the mdc address table
3. Ensure the Feign client's decoder is configured to wrap empty bodies (or return a fallback Wrapper) instead of null
4. Confirm mdc service registration/discovery (Eureka) so the Feign call reaches a live instance

Example fix

// before
Wrapper<AddressDTO> wrapper = mdcAddressQueryFeignApi.getById(addressId);
// after (server-side)
return Wrapper.ok(addressMapper.selectByPrimaryKey(addressId)); // never return a bare/empty body
// caller-side
if (wrapper == null) { throw new MdcBizException(ErrorCodeEnum.GL99990002); }

boolean exists = addressMapper.selectCount(new QueryWrapper().eq("id", addressId)) > 0; // verify locally before RPC

if (wrapper == null || wrapper.getResult() == null) { return Optional.empty(); }
return Optional.of(wrapper.getResult());

try { return addressService.getAddressById(id); } catch (MdcBizException e) { if (ErrorCodeEnum.GL99990002.getCode().equals(e.getCode())) { log.error("mdc returned null wrapper for addressId={}", id, e); return defaultAddress(); } throw e; }

When it happens

Trigger: Calling getAddressById when the downstream mdc service responds with an empty body (Feign decode produces null Wrapper), e.g. the remote endpoint returned nothing for that addressId or the response could not be deserialized.

Common situations: mdc service down or returning empty 200 bodies; Feign decoder configuration mismatch (empty body -> null); nonexistent addressId hitting an endpoint that returns no wrapper; network/proxy issues yielding empty responses.

Related errors

• GL99990002
• OMC10031012
• OMC10031013
• GL99990002
• GL99990002

AI-assisted analysis of paascloud/paascloud-master@781281a950 (2026-09-10). Data as JSON: /api/errors/80d11bd03e4994be. Report an issue: GitHub.

Appendix: source

Thrown at paascloud-provider/paascloud-provider-uac/src/main/java/com/paascloud/provider/service/impl/MdcAddressServiceImpl.java:33

/**
 * The class Mdc address service.
 *
 * @author paascloud.net @gmail.com
 */
@Service
@Transactional(rollbackFor = Exception.class)
public class MdcAddressServiceImpl implements MdcAddressService {
	@Resource
	private MdcAddressQueryFeignApi mdcAddressQueryFeignApi;

	@Override
	@Transactional(readOnly = true, rollbackFor = Exception.class)
	public AddressDTO getAddressById(Long addressId) {
		Preconditions.checkArgument(addressId != null, "地址ID不能为空");
		Wrapper<AddressDTO> wrapper = mdcAddressQueryFeignApi.getById(addressId);

		if (wrapper == null) {
			throw new MdcBizException(ErrorCodeEnum.GL99990002);
		}
		if (wrapper.error()) {
			throw new MdcBizException(ErrorCodeEnum.MDC10021002);
		}
		return wrapper.getResult();
	}
}

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