https://hbase.apache.org/2.4/testdevapidocs/org/apache/hadoop/hbase/GenericTestUtils.DelegateAnswer.html
GenericTestUtils.DelegateAnswer (Apache HBase 2.4.0 Test API)
apache hbasetestapi
https://hbase.apache.org/2.3/testdevapidocs/org/apache/hadoop/hbase/GenericTestUtils.DelegateAnswer.html
GenericTestUtils.DelegateAnswer (Apache HBase 2.3.0 Test API)
apache hbasetestapi