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import java.util.Optional;
import java.util.function.Supplier;
import org.checkerframework.checker.nullness.qual.Nullable;
import org.checkerframework.checker.optional.qual.Present;
/** Test JDK annotations. */
@SuppressWarnings("optional.parameter")
public class JdkCheck {
boolean isPresentTest1(@Present Optional<String> pos) {
return pos.isPresent();
}
boolean isPresentTest2(Optional<String> mos) {
return mos.isPresent();
}
String orElseThrowTest1(
@Present Optional<String> pos, Supplier<RuntimeException> exceptionSupplier) {
return pos.orElseThrow(exceptionSupplier);
}
String orElseThrowTest2(Optional<String> mos, Supplier<RuntimeException> exceptionSupplier) {
// :: error: (method.invocation.invalid)
return mos.orElseThrow(exceptionSupplier);
}
String getTest1(@Present Optional<String> pos) {
return pos.get();
}
String getTest2(Optional<String> mos) {
// :: error: (method.invocation.invalid)
return mos.get();
}
@Present Optional<String> ofTestPNn(String s) {
return Optional.of(s);
}
Optional<String> ofTestMNn(String s) {
return Optional.of(s);
}
@Present Optional<String> ofTestPNble(@Nullable String s) {
// TODO :: error: (of.nullable.argument) :: error: (return.type.incompatible)
return Optional.of(s);
}
Optional<String> ofTestMNble(@Nullable String s) {
// TODO :: error: (of.nullable.argument) :: error: (return.type.incompatible)
return Optional.of(s);
}
@Present Optional<String> ofNullableTestPNble(@Nullable String s) {
// :: error: (return.type.incompatible)
return Optional.ofNullable(s);
}
/* TODO: ofNullable with non-null arg gives @Present (+ a warning?)
@Present Optional<String> ofNullableTestPNn(String s) {
return Optional.ofNullable(s);
}
*/
Optional<String> ofNullableTestMNble(@Nullable String s) {
return Optional.ofNullable(s);
}
Optional<String> ofNullableTestMNn(String s) {
return Optional.ofNullable(s);
}
}
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