[READY] v2.x Fix JRuby, 2nd attempt #453

Job	Run time
rubocop	17s
Unit test (ubuntu-20.04, 3)	1m 45s
Unit test (ubuntu-20.04, 3.1)	1m 47s
Unit test (ubuntu-20.04, 3.2)	1m 46s
Unit test (ubuntu-20.04, 3.3)	1m 51s
Unit test (ubuntu-20.04, 3.4)	1m 47s
Unit test (ubuntu-20.04, jruby-9.4)	2m 35s
Unit test (ubuntu-20.04, truffleruby)	3m 34s
Unit test (macos-latest, 3)	1m 35s
Unit test (macos-latest, 3.1)	1m 37s
Unit test (macos-latest, 3.2)	1m 39s
Unit test (macos-latest, 3.3)	1m 34s
Unit test (macos-latest, 3.4)	1m 36s
Unit test (macos-latest, jruby-9.4)	2m 36s
Unit test (macos-latest, truffleruby)	2m 36s
Unit test (windows-latest, 3)	5m 11s
Unit test (windows-latest, 3.1)	3m 12s
Unit test (windows-latest, 3.2)	3m 16s
Unit test (windows-latest, 3.3)	3m 17s
Unit test (windows-latest, 3.4)	3m 58s
finish	4s
	47m 33s

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