Return null or something nullable from a lambda in transformation method
Reports transform operations that may return null inside a Reactive Stream chain.
Reactive Streams don't support nullable values, which causes such code to fail. The quick-fix suggests replacing map() with mapNotNull, which omits exceptions.
Example:
repository.findWithTailableCursorBy()
.map(e -> (Person)null)
.doOnNext(System.out::println)
After the quick-fix is applied:
repository.findWithTailableCursorBy()
.mapNotNull(e -> (Person)null)
.doOnNext(System.out::println)
New in 2019.3
Inspection Details | |
|---|---|
Available in: | IntelliJ IDEA 2023.3, Qodana for JVM 2023.3 |
Plugin: | Reactive Streams, 233.SNAPSHOT |
Last modified: 13 July 2023