diff --git a/java/java-tests/testData/codeInsight/daemonCodeAnalyzer/genericsHighlighting/IDEA20244.java b/java/java-tests/testData/codeInsight/daemonCodeAnalyzer/genericsHighlighting/IDEA20244.java
new file mode 100644
index 000000000000..ee5235ad87fe
--- /dev/null
+++ b/java/java-tests/testData/codeInsight/daemonCodeAnalyzer/genericsHighlighting/IDEA20244.java
@@ -0,0 +1,23 @@
+import java.util.Collection;
+class Test {
+    public static final UnaryFunction<Object, Object, RuntimeException> unaryFunction = new UnaryFunction<Object, Object, RuntimeException>() {
+        public Object execute(Object o) throws RuntimeException {
+            return null;
+        }
+    };
+
+    public static <A, B, X extends Throwable> void someMethod() {
+        transformCollection(null, unaryFunction, null);
+    }
+
+    public static <A, B, X extends Throwable> void transformCollection(Collection<? extends A> input, UnaryFunction<A, B, X> transform, Collection<? super B> output) throws X {
+        for (A a : input) {
+            B b = transform.execute(a);
+            output.add(b);
+        }
+    }
+}
+
+interface UnaryFunction<A, B, X extends Throwable> {
+    public B execute(A a) throws X;
+}
diff --git a/java/java-tests/testSrc/com/intellij/codeInsight/daemon/GenericsHighlightingTest.java b/java/java-tests/testSrc/com/intellij/codeInsight/daemon/GenericsHighlightingTest.java
index 6d9f498ed1a4..de9a8363ca8e 100644
--- a/java/java-tests/testSrc/com/intellij/codeInsight/daemon/GenericsHighlightingTest.java
+++ b/java/java-tests/testSrc/com/intellij/codeInsight/daemon/GenericsHighlightingTest.java
@@ -229,6 +229,7 @@ public class GenericsHighlightingTest extends LightDaemonAnalyzerTestCase {
 
   public void testIDEA21597() throws Exception { doTest5(false);}
   public void testIDEA20573() throws Exception { doTest5(false);}
+  public void testIDEA20244() throws Exception { doTest5(false);}
 
   public void testIDEA27185(){ doTest(LanguageLevel.JDK_1_6, JavaSdkVersion.JDK_1_6, false); }
   public void testIDEA67571(){ doTest(LanguageLevel.JDK_1_7, JavaSdkVersion.JDK_1_7, false); }