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Fabrice Tiercelin 1c9de6b4cf [java-inspections] IDEA-299573 Handle Optional.isEmpty() in "Non functional style Optional.isPresent() usage" inspection
PR#2100

Co-authored-by: Tagir Valeev <tagir.valeev@jetbrains.com>

GitOrigin-RevId: c0b8495f26bccf51c593deb6be927eb01c37d379
2022-08-10 18:04:05 +00:00

16 lines
548 B
Java

// "Replace Optional presence condition with functional style expression" "GENERIC_ERROR_OR_WARNING"
import java.util.Arrays;
import java.util.List;
import java.util.Optional;
public class Main {
private static String test(List<Object> list) {
Optional<Object> first = list.stream().filter(obj -> obj instanceof String).findFirst();
return fi<caret>rst.isPresent() ? (String) first.get() : null;
}
public static void main(String[] args) {
System.out.println(test(Arrays.asList(null, null, "aa", "bbb", "c", null, "dd")));
}
}