Avoid direct constructors from JRuby #346

Job	Run time
maven-test (jruby-9.4.14.0, 21, temurin)	3m 7s
maven-test (jruby-9.4.14.0, 8, temurin)	2m 56s
maven-test (jruby-9.4.14.0, 25, temurin)	2m 36s
maven-test (8, temurin, jruby-9.3.3.0)	2m 52s
maven-test (11, temurin, jruby-9.2.20.1)	3m 5s
maven-test (jruby-9.4.14.0, 11, temurin)	2m 58s
maven-test (8, temurin, jruby-9.2.19.0)	2m 48s
maven-test (21, oracle, jruby-9.3.13.0)	2m 48s
maven-test (21, oracle, jruby-9.4.8.0)	2m 29s
maven-test (11, temurin, jruby-9.3.13.0)	2m 28s
maven-test (21, temurin, jruby-10.0.4.0)	2m 28s
maven-test (24, zulu, jruby-10.0.1.0)	2m 36s
maven-test (11, zulu, jruby-9.4.5.0)	3m 0s
maven-test (21, corretto, jruby-head)	2m 57s
maven-test (25, temurin, jruby-10.0.3.0)	2m 47s
	41m 55s

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