Optional call chain can be simplified
Reports Optional call chains that can be simplified. Here are several examples of possible simplifications:
optional.map(x -> true).orElse(false)
→optional.isPresent()
optional.map(x -> Optional.of(x.trim())).orElseGet(Optional::empty)
→optional.map(String::trim)
optional.map(x -> (String)x).orElse(null)
→(String) optional.orElse(null)
Optional.ofNullable(optional.orElse(null))
→optional
val = optional.orElse(null); val != null ? val : defaultExpr
→optional.orElse(defaultExpr)
val = optional.orElse(null); if(val != null) expr(val)
→optional.ifPresent(val -> expr(val))
- By ID
Can be used to locate inspection in e.g. Qodana configuration files, where you can quickly enable or disable it, or adjust its settings.
SimplifyOptionalCallChains
This inspection depends on the Java feature 'Stream and Optional API', which is available since Java 8.
New in 2017.2
Inspection Details | |
---|---|
By default bundled with: | |
Can be installed with plugin: | Java, 243.23126 |
Thanks for your feedback!