testdata for IDEA-174924

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/newLambda/IDEA174924.java

@@ -0,0 +1,31 @@
+import java.util.List;
+import java.util.function.Function;
+
+import static java.util.Collections.singletonList;
+
+class Main {
+    public static void main(String[] args) {
+        FlatMap<?, Item> flatmap = new FlatMap<>();
+        Col<String> s1 = new Col<>();
+        Col<Item> s2 = s1.apply(flatmap.with((String word) -> singletonList(new Item())));
+        Col<Item> s22 = s1.apply(flatmap.with((word) -> singletonList(new Item())));
+    }
+}
+
+class FlatMap<I, O> implements Transform<Col<I>, Col<O>> {
+
+    <I2> FlatMap<I2, O> with(Function<I2, List<O>> fn) {
+        return new FlatMap<>();
+    }
+}
+
+class Col<E> {
+
+    <R> Col<R> apply(Transform<Col<E>, Col<R>> transform) {
+        return new Col<>();
+    }
+}
+
+interface Transform<I, O> { }
+
+class Item { }