Reports long Reactive Streams transformation chains.

Each operator method call, such as map() or filter(), creates some objects for those operators. Calling a long chain of operators on each subscription, for each stream element, may cause performance overhead. To avoid it, combine a long chain of calls into one operator call wherever possible.

Example:

Flux.just(1, 2, 3)
        .map(it -> it + 1)
        .map(it -> it + 2)
        .map(it -> it + 3)

After the quick-fix is applied:

Flux.just(1, 2, 3)
        .map(it -> it + 1 + 2 + 3)

New in 2019.3