import org.checkerframework.checker.nullness.qual.NonNull;
import org.checkerframework.checker.nullness.qual.Nullable;

class Binary {
    // warn: redundant
    @Nullable Object foo() { return null; }
    // warn: redundant
    Object bar(Object p) { return null; }
    // TODO: https://github.com/typetools/checker-framework/issues/2759
    int baz(Object @Nullable [] p) { return 1; }
    // don't warn: changes unannotated parameter type
    int baz2(Object @Nullable [] p) { return 1; }
}