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// Test case for issue #979: https://github.com/typetools/checker-framework/issues/979
// @skip-test
import org.checkerframework.checker.nullness.qual.*;
public class Issue531 {
public MyList<String> test(MyStream<String> stream) {
return stream.collect(toList());
}
void foo(MyStream<String> stream) {}
static <T> MyCollector<T, ?, MyList<T>> toList() {
return new MyCollector<>();
}
}
class MyList<T> {}
class MyCollector<T, A, R> {}
abstract class MyStream<T> {
public abstract <R, A> R collect(MyCollector<? super T, A, R> c);
}
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