During the month, contributed to the alibaba/nacos repository by addressing a persistent issue with the EmbeddedConfigInfoPersistServiceImplTest, which was failing intermittently due to variations in JSON field order during configuration history insertion. Applied backend development and unit testing skills in Java to implement a flexible comparison strategy using argThat, allowing the test to tolerate differences in field order and thereby eliminating the flaky behavior. This targeted fix improved the reliability of the test suite and enhanced CI stability, resulting in faster feedback cycles and safer releases. The work focused on debugging and stabilizing core backend processes rather than feature development.