testdata for IDEA-100441

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/methodRef/100441.java

@@ -0,0 +1,46 @@
+interface Stream<T> {
+  void forEach(Consumer<? super T> consumer);
+}
+
+interface List<T> {
+  Stream<T> stream();
+}
+
+interface Consumer<T> {
+  public void accept(T t);
+}
+
+interface BiFunction<T, U, R> {
+  R apply(T t, U u);
+}
+
+interface BiConsumer<T, U> {
+  void accept(T t, U u);
+}
+
+class Test {
+  public static <A, B> void zipConsume(Stream<? extends A> a, Stream<? extends B> b,
+                                       BiConsumer<? super A, ? super B> zipper) {
+    zip(a, b, Pair<A, B>::new).forEach(p -> zipper.accept(p.a, p.b));
+  }
+
+  public static <A, B, C> Stream<C> zip(Stream<? extends A> a,
+                                        Stream<? extends B> b,
+                                        BiFunction<? super A, ? super B, ? extends C> zipper) {
+    return null;
+  }
+
+  private static class Pair<A, B> {
+    private final A a;
+    private final B b;
+
+    protected Pair(A a, B b) {
+      this.a = a;
+      this.b = b;
+    }
+  }
+
+  void foo(List<Integer> a, List<Integer> b) {
+    zipConsume(a.stream(), b.stream(), (x, y) -> System.out.println(x + y));
+  }
+}