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Similar as 6875. The test org.apache.cloudstack.api.command.test.ResetVMUserDataCmdTest.testUserdataDetails, is a flaky tests. It can pass mvn test but when run using the tool NonDex, it fails. NonDex is a tool that will introduce non-determinism in certain java collections. The cause of failure is because the test is comparing the string format of two hashmaps, however, as per Oracle's documentation: The HashMap class is roughly equivalent to Hashtable, except that it is unsynchronized and permits nulls. This class makes no guarantees as to the order of the map; in particular, it does not guarantee that the order will remain constant over time. So the result of toString() is non-deterministic. Use hashmap's own equal methods is more reasonable.