Refine Mono#doOnSuccess Consumer nullability
#4155
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Since the operator delivers `null` as a result in case of an empty `Mono`, the `Consumer<? super T>` needs to change to allow nullable references. `Consumer<? super @nullable T>` is the generic declaration that allows proper inference, especially by Kotlin, that the `Consumer`'s argument can be `null`. Resolves #4151 Signed-off-by: Dariusz Jędrzejczyk <dariusz.jedrzejczyk@broadcom.com>
Signed-off-by: Dariusz Jędrzejczyk <dariusz.jedrzejczyk@broadcom.com>
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Since the operator delivers
nullas a result in case of an emptyMono, theConsumer<? super T>needs to change to allow nullable references.Consumer<? super @Nullable T>is the generic declaration that allows proper inference, especially by Kotlin, that theConsumer's argument can benull.Resolves #4151