testdata for IDEA-118965

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/newLambda/IDEA118965.java

@@ -0,0 +1,37 @@
+import java.util.ArrayList;
+import java.util.List;
+import java.util.function.Function;
+import java.util.stream.Stream;
+
+import static java.util.Arrays.asList;
+
+class Test {
+
+  public static void main(String[] args) {
+
+    List<String> list = new ArrayList<>(); // JDK 7 diamond operator
+    list.add("aaa");
+    list.add("bb");
+    list.add("cccc");
+    list.add("dd");
+    list.add("e");
+
+    schwartz(list.stream(), s -> s.length())
+      .forEach(x -> { System.out.println(x); });
+  }
+
+  public static<T, R extends Comparable<? super R>> Stream<T> schwartz(Stream<T> stream, Function<T, R> f) {
+
+    // class Pair - type of second element of pair must be Comparable
+    final class Pair<F, S extends Comparable<? super S>> {
+      public final F first;
+      public final S second;
+      public Pair(F first, S second){ this.first = first; this.second = second; }
+    }
+
+    return stream
+      .map(t -> new Pair<>(t, f.apply(t)))
+      .sorted((p1, p2) -> p1.second.compareTo(p2.second))
+      .map(p -> p.first);
+  }
+}