Restricted Java oneOf imports to Jackson only when needed (#21404)

[DavidGrath]

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@martin-mfg
@lwlee2608
Please help review for Java

[DavidGrath]

@wing328 @martin-mfg , please do you have any advise on how to handle GlobalSettingsTest.testNonStringSystemProperties? I see that's the test causing the pipeline failure

[wing328]

i think that's resolved in the latest master

can you please merge the latest master into your branch?

[DavidGrath]

@wing328 , thank you! It's fixed now

[wing328]

thanks for the PR

let's give it a try