Hi, I have fixed problem with the test CacheGroupsMetricsRebalanceTest.testRebalanceEstimateFinishTime.
Please review and merge if okay. P.S. Aleksey Plekhanov already approved it (see Jira). JIRA: https://issues.apache.org/jira/browse/IGNITE-6430 PR: https://github.com/apache/ignite/pull/3914 TC (with 120 passes): https://ci.ignite.apache.org/viewLog.html?buildId=1246058&buildTypeId=IgniteTests24Java8_Cache3&tab=testsInfo TC: https://ci.ignite.apache.org/viewType.html?buildTypeId=IgniteTests24Java8_BuildApacheIgnite&branch_IgniteTests24Java8=pull%2F3914%2Fhead&tab=buildTypeStatusDiv