import static java.util.Objects.requireNonNull;
import java.util.Collection;
-import java.util.List;
import java.util.Objects;
import java.util.Optional;
import org.eclipse.jdt.annotation.NonNull;
}
@Override
- public Collection<MustDefinition> getMustConstraints() {
+ public Collection<? extends MustDefinition> getMustConstraints() {
return delegateSchemaNode().getMustConstraints();
}
@Override
- public List<UnknownSchemaNode> getUnknownSchemaNodes() {
+ public Collection<? extends UnknownSchemaNode> getUnknownSchemaNodes() {
return delegateSchemaNode().getUnknownSchemaNodes();
}