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Bugzilla – Attachment 260551 Details for
Bug 490339
Optional.orElse() doesn't accept null argument when parameter type is @NonNull
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OrElseNull.java shows the problem
file_490339.txt (text/plain), 796 bytes, created by
Colin Bartolome
on 2016-03-23 17:13:11 EDT
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Description:
OrElseNull.java shows the problem
Filename:
MIME Type:
Creator:
Colin Bartolome
Created:
2016-03-23 17:13:11 EDT
Size:
796 bytes
patch
obsolete
>import java.util.stream.Stream; > >import org.eclipse.jdt.annotation.Nullable; > >public class OrElseNull >{ > private enum Type > { > INVALID(false); > > private boolean valid; > > private Type(boolean valid) > { > this.valid = valid; > } > > public boolean isValid() > { > return valid; > } > } > > public static @Nullable Type getFirstValidType() > { > @Nullable Type type = Stream.of(Type.values()) > .filter(Type::isValid) > .findFirst() > .orElse(null); // "Null type mismatch" error here > > if (type == null) // "Always yields false" warning here > { > System.err.println("No valid types!"); > } > > return type; > } >}
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