openide/java/java-tests/testData/inspection/optionalGet/AbstractEnum.java at 63c4ffc2bc42b57302969f22abe32ae00d8dff99 - openide - Gitea

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Tagir Valeev 651a333e8e TypeConstraints: handle incorrect abstract final classes (final wins)

Before this if class is final we assumed that all its instances are exact instances; however if it's also abstract, we assumed that exact instances cannot be instantiated (which is technically correct). Thus we could not create TypeConstraint for such a type at all (which is also technically correct). However, clients may not expect the bottom constraint, so we decide now to ignore abstract modifier in such a case to be able to continue the analysis.

GitOrigin-RevId: 04c9eafd7574154ea6389028a82b24ce735d6a49

2020-03-27 10:01:15 +00:00

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Java

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 import java.util.Optional;
 class AAA {
   <error descr="Modifier 'abstract' not allowed here">abstract</error> enum X {A, B;}
   public static void main(String[] args) {
     Optional.of(args.length > 0 ? X.A : X.B).get();
   }
 }