testdata for IDEA-126809

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/newLambda/IDEA126809.java

@@ -0,0 +1,27 @@
+import java.util.Optional;
+import java.util.Set;
+import java.util.stream.Stream;
+
+import static java.util.stream.Collectors.toSet;
+
+class App {
+
+  {
+    final User user = new User("test", Stream.of("TEST").collect(toSet()));
+    Optional.of(user).map(u -> new User(u.getName(),
+                                        u.getAttributes().stream().filter(a -> !a.equals("TEST")).collect(toSet())));
+  }
+
+  private static final class User {
+    User(final String name, final Set<String> attributes) {
+    }
+
+    public String getName() {
+      return null;
+    }
+
+    public Set<String> getAttributes() {
+      return null;
+    }
+  }
+}