diff --git a/java/java-tests/testData/codeInsight/daemonCodeAnalyzer/genericsHighlighting/IDEA20573.java b/java/java-tests/testData/codeInsight/daemonCodeAnalyzer/genericsHighlighting/IDEA20573.java
new file mode 100644
index 000000000000..22bd7a39c8a9
--- /dev/null
+++ b/java/java-tests/testData/codeInsight/daemonCodeAnalyzer/genericsHighlighting/IDEA20573.java
@@ -0,0 +1,26 @@
+public class GoodCodeIsRed {
+
+    public void test() {
+        FileIF file = new FileImpl();
+        file.getInputStream();
+    }
+}
+
+class FileImpl implements FileIF {
+
+    public void getInputStream() {
+    }
+
+}
+
+interface FileIF extends BasicFileIF, DataSource {
+}
+
+interface BasicFileIF {
+    void getInputStream();
+}
+
+
+interface DataSource {
+    void getInputStream() throws java.io.IOException;
+}
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 455f2805db3b..6d9f498ed1a4 100644
--- a/java/java-tests/testSrc/com/intellij/codeInsight/daemon/GenericsHighlightingTest.java
+++ b/java/java-tests/testSrc/com/intellij/codeInsight/daemon/GenericsHighlightingTest.java
@@ -228,6 +228,7 @@ public class GenericsHighlightingTest extends LightDaemonAnalyzerTestCase {
   public void testIDEA21602_7(){ doTest(LanguageLevel.JDK_1_7, JavaSdkVersion.JDK_1_7, false); }
 
   public void testIDEA21597() throws Exception { doTest5(false);}
+  public void testIDEA20573() 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); }