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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

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 * particular file as subject to the "Classpath" exception as provided

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/**

 * @test

 * @bug 8152832

 * @summary Type inference regression in javac

 * @compile T8152832.java

 */

import java.util.function.*;

import java.util.stream.*;

import java.util.*;

class T8152832 {

    interface MyStream<T> extends Stream<T> {

        public <U> List<U> toFlatList(Function<? super T, ? extends Collection<U>> mapper);

    }

    static class MyStreamSupplier<T> {

        public MyStream<T> get() {

            return null;

        }

    }

    public static <T> void myStream(Supplier<Stream<T>> base, Consumer<MyStreamSupplier<T>> consumer) {

    }

    public static void assertEquals(Object expected, Object actual) {

    }

    public void test() {

        List<List<String>> strings = Arrays.asList();

        List<String> expectedList = Arrays.asList();

        myStream(strings::stream, supplier -> {

            assertEquals(expectedList, supplier.get().toFlatList(Function.identity()));

        });

    }

}