1 files changed, 27 insertions, 0 deletions
diff --git a/java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/newLambda/IDEA126778.java b/java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/newLambda/IDEA126778.java
new file mode 100644
index 000000000000..d8bdcc0d6c82
--- /dev/null
+++ b/java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/newLambda/IDEA126778.java
@@ -0,0 +1,27 @@
+import java.util.Map;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+import static java.util.stream.Collectors.groupingBy;
+import static java.util.stream.Collectors.mapping;
+
+class Test {
+  private static Map<Long, Long> multiDataPointsToPerTxnSummedValue(final Stream<Map.Entry<DateTime, Map<Long, Long>>> stream) {
+    return stream.flatMap(e -> e.getValue().entrySet().stream().map(ex ->
+                                                                      new Object() {
+                                                                        Long txId = ex.getKey();
+                                                                        DataPoint dataPoint = new DataPoint(e.getKey(), ex.getValue());
+                                                                      }
+    )).collect(groupingBy(t -> t.txId, mapping(t -> t.dataPoint, Collectors.summingLong(dataPoint -> dataPoint.getValue().longValue()))));
+  }
+
+  static class MultiDataPoint {}
+  static class DateTime {}
+
+  static class DataPoint {
+    DataPoint(DateTime t, Long val) {}
+    public Long getValue() {
+      return null;
+    }
+  }
+}
+\ No newline at end of file