address jing's review comments #11

Job	Run time
Pre-compile Checks / Basic QA	4m 6s
Default (Java 8) / Compile	24m 18s
Default (Java 8) / Test packaging/licensing	30m 45s
Default (Java 8) / E2E (group 1)	2h 41m 3s
Default (Java 8) / Test (module: core)	35m 38s
Default (Java 8) / E2E (group 2)	3h 9m 37s
Default (Java 8) / Test (module: python)	30m 8s
Default (Java 8) / Test (module: table)	32m 1s
Default (Java 8) / Test (module: connect)	18m 48s
Default (Java 8) / Test (module: tests)	44m 41s
Default (Java 8) / Test (module: misc)	46m 36s
	10h 17m 41s

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