*Fix graceful shutdown notify failure #278

Job	Run time
build agent and cache	3m 44s
download midwares and cache	7s
set-execution-conditions	8s
Test for spring (1.5.0.RELEASE, Edgware.SR2, 1.5.0.RELEASE)	3m 36s
Test for spring (2.0.2.RELEASE, Finchley.RELEASE, 4.1.3, 2.0.0.RELEASE, 1.0.1)	3m 48s
Test for spring (2.1.0.RELEASE, Greenwich.RELEASE, 4.2.6, 2.1.0.RELEASE, 1.0.1)	3m 32s
Test for spring (2.2.0.RELEASE, Hoxton.RELEASE, 4.3.6, 2.2.0.RELEASE, 1.0.3)	3m 32s
Test for spring (2.3.0.RELEASE, Hoxton.RELEASE, 4.4.1, 2.2.8.RELEASE, 1.1.2)	3m 38s
Test for spring (2.4.0, 2020.0.0, 4.5.6, 2021.0.1.0, 1.1.4)	3m 28s
Test for spring (2.6.2, 2021.0.0, 4.5.10, 2021.1, 1.1.10)	3m 30s
Test for spring (2.7.2, 2021.0.3, 4.5.13, 1.1.12)	3m 33s
	32m 36s

Provide feedback