Hi Flink developers, I reported FLINK-40592 and would like to contribute the fix. PrometheusPushGatewayReporter fails to initialize with Basic authentication when JAXB is absent. The proposed change uses JDK Base64 encoding and adds six authentication regression cases.
The PR now passes the community Azure CI, including the Prometheus tests and the configured E2E groups. Could a committer please review the proposed approach and assign the Jira issue to me if agreed? Jira: https://issues.apache.org/jira/browse/FLINK-40592 PR: https://github.com/apache/flink/pull/29151 CI: https://dev.azure.com/apache-flink/apache-flink/_build/results?buildId=78940&view=results Thanks, Weicheng Ji
