Merge branch 'fix_issue16660' of https://github.com/graemevwilson/ope… #1260

Job	Run time
Gradle tests (samples/openapi3/client/extensions/x-auth-id-alias/java/jersey2-java8)	1m 34s
Gradle tests (samples/openapi3/client/petstore/java/jersey2-java8-special-characters)	1m 37s
Gradle tests (samples/openapi3/client/petstore/java/jersey2-java8)	1m 16s
Gradle tests (samples/client/petstore/java/jersey2-java8-localdatetime)	1m 28s
Gradle tests (samples/client/petstore/java/jersey2-java8)	1m 8s
Gradle tests (samples/client/petstore/java/okhttp-gson)	1m 51s
Gradle tests (samples/client/petstore/java/okhttp-gson-group-parameter)	1m 5s
Gradle tests (samples/client/petstore/java/webclient-swagger2)	1m 48s
	11m 47s

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