From 75f267c222b1ddf514f08add8584877d3364478b Mon Sep 17 00:00:00 2001
From: Anna Kozlova <anna.kozlova@jetbrains.com>
Date: Fri, 11 Apr 2014 16:03:27 +0200
Subject: [PATCH] testdata for IDEA-123848

---
 .../lambda/newLambda/IDEA123848.java          | 27 +++++++++++++++++++
 .../lambda/NewLambdaHighlightingTest.java     |  4 +++
 2 files changed, 31 insertions(+)
 create mode 100644 java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/newLambda/IDEA123848.java

diff --git a/java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/newLambda/IDEA123848.java b/java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/newLambda/IDEA123848.java
new file mode 100644
index 000000000000..0d1cec6f3c21
--- /dev/null
+++ b/java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/newLambda/IDEA123848.java
@@ -0,0 +1,27 @@
+import java.util.*;
+
+import static java.util.stream.Collectors.groupingBy;
+import static java.util.stream.Collectors.mapping;
+import static java.util.stream.Collectors.toList;
+
+class Test {
+
+  private static void run() {
+    List<R> list = Arrays.asList(new R());
+
+    System.out.println(
+      list.stream()
+        .collect(groupingBy(r -> r.get(String.class), mapping(r -> r.get(String.class),toList())
+        ))
+    );
+  }
+
+  static class R {
+    <T> T get(Class<T> clazz) {
+      if (clazz == String.class)
+        return (T) "string";
+
+      throw new IllegalArgumentException();
+    }
+  }
+}
\ No newline at end of file
diff --git a/java/java-tests/testSrc/com/intellij/codeInsight/daemon/lambda/NewLambdaHighlightingTest.java b/java/java-tests/testSrc/com/intellij/codeInsight/daemon/lambda/NewLambdaHighlightingTest.java
index fa13181d7a22..5e21a82fa200 100644
--- a/java/java-tests/testSrc/com/intellij/codeInsight/daemon/lambda/NewLambdaHighlightingTest.java
+++ b/java/java-tests/testSrc/com/intellij/codeInsight/daemon/lambda/NewLambdaHighlightingTest.java
@@ -194,6 +194,10 @@ public class NewLambdaHighlightingTest extends LightDaemonAnalyzerTestCase {
     doTest();
   }
 
+  public void testIDEA123848() throws Exception {
+    doTest();
+  }
+
   private void doTest() {
     doTest(false);
   }