diff --git a/compiler/testData/mockJDK/jre/lib/rt.jar b/compiler/testData/mockJDK/jre/lib/rt.jar
index 95f1bd6f0cd..48f458358a7 100644
Binary files a/compiler/testData/mockJDK/jre/lib/rt.jar and b/compiler/testData/mockJDK/jre/lib/rt.jar differ
diff --git a/compiler/testData/mockJDK/src.zip b/compiler/testData/mockJDK/src.zip
index c293be6dae0..548bc61d9c7 100644
Binary files a/compiler/testData/mockJDK/src.zip and b/compiler/testData/mockJDK/src.zip differ
diff --git a/generators/org/jetbrains/jet/generators/mockJDK/GenerateMockJdk.java b/generators/org/jetbrains/jet/generators/mockJDK/GenerateMockJdk.java
index 04686620a01..12ee80b29d7 100644
--- a/generators/org/jetbrains/jet/generators/mockJDK/GenerateMockJdk.java
+++ b/generators/org/jetbrains/jet/generators/mockJDK/GenerateMockJdk.java
@@ -55,6 +55,7 @@ public class GenerateMockJdk {
             "java/io/File.class",
             "java/io/FileInputStream.class",
             "java/io/FilenameFilter.class",
+            "java/io/FileFilter.class",
             "java/io/FileNotFoundException.class",
             "java/io/FileOutputStream.class",
             "java/io/FileReader.class",