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Yangze Guo commented on FLINK-18205: ------------------------------------ FYI, I also found the same usage in org.apache.flink.yarn.Utils. I plan to mitigate the usage of reflection in that class as well. > Mitigate the use of reflection in HadoopModule > ---------------------------------------------- > > Key: FLINK-18205 > URL: https://issues.apache.org/jira/browse/FLINK-18205 > Project: Flink > Issue Type: Improvement > Components: Deployment / YARN > Reporter: Yangze Guo > Assignee: Yangze Guo > Priority: Major > Fix For: 1.12.0 > > > Since Flink drops support for Hadoop 1 since FLINK-4895, it would be good to > mitigate the use of reflection in {{HadoopModule}}. To be specific, we could > make sure the following methods exist in Hadoop 2+: > - Credentials#getAllTokens > - Credentials#readTokenStorageFile > - UserGroupInformation#addCredentials -- This message was sent by Atlassian Jira (v8.3.4#803005)