Fix error handling in Jackson2JsonDecoder [SPR-15112]

[spring-projects-issues]

Sébastien Deleuze opened SPR-15112 and commented

As found by Simon Baslé when discussing this reactor-test potential issue, Jackson2JsonDecoder wrongly return a Flux.error() in a map() operation. It should throw the exception instead.

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Affects: 5.0 M4

Reference URL: reactor/reactor-addons#64

Referenced from: commits aa43472