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))→optionalval = optional.orElse(null); val != null ? val : defaultExpr→optional.orElse(defaultExpr)val = optional.orElse(null); if(val != null) expr(val)→optional.ifPresent(val -> expr(val))
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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
You can suppress this inspection by placing the following comment marker before the code fragment where you no longer want messages from this inspection to appear:
//noinspection SimplifyOptionalCallChainsnote
Actual comment syntax will depend on the code language you are working with
More detailed instructions as well as other ways and options that you have can be found in the product documentation:
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