Merge pull request #118 from yegortokmakov/master #162

Job	Run time
ci / jdk-11 travis	2m 0s
integration_test / jdk-11 mysql2	6m 13s
integration_test / jdk-11 postgresql	4m 44s
ci / verify	1m 10s
ci / jdk-11 travis	2s
ci / jdk-11 integration-mysql	4m 10s
ci / jdk-11 integration-postgresql	1m 54s
ci / jdk-17 travis	3m 30s
ci / jdk-17 integration-mysql	4m 2s
ci / jdk-17 integration-postgresql	2m 35s
	30m 20s

Provide feedback