diff --git a/compiler/light-classes/src/org/jetbrains/kotlin/asJava/KotlinLightClassForPackage.kt b/compiler/light-classes/src/org/jetbrains/kotlin/asJava/KotlinLightClassForPackage.kt
index c9b99f15a3c..812c91d5e58 100644
--- a/compiler/light-classes/src/org/jetbrains/kotlin/asJava/KotlinLightClassForPackage.kt
+++ b/compiler/light-classes/src/org/jetbrains/kotlin/asJava/KotlinLightClassForPackage.kt
@@ -16,7 +16,6 @@
 
 package org.jetbrains.kotlin.asJava
 
-import com.google.common.collect.Sets
 import com.intellij.openapi.components.ServiceManager
 import com.intellij.openapi.project.Project
 import com.intellij.openapi.util.Comparing
@@ -34,10 +33,9 @@ import org.jetbrains.annotations.NonNls
 import org.jetbrains.kotlin.idea.JetLanguage
 import org.jetbrains.kotlin.load.kotlin.PackageClassUtils
 import org.jetbrains.kotlin.name.FqName
-import org.jetbrains.kotlin.psi.JetClassOrObject
 import org.jetbrains.kotlin.psi.JetFile
-
 import javax.swing.*
+import org.jetbrains.kotlin.psi.JetClassOrObject
 
 public class KotlinLightClassForPackage private(
         manager: PsiManager,
diff --git a/compiler/light-classes/src/org/jetbrains/kotlin/asJava/KotlinWrappingLightClass.java b/compiler/light-classes/src/org/jetbrains/kotlin/asJava/KotlinWrappingLightClass.java
index a6a8cc507b8..39d2928669c 100644
--- a/compiler/light-classes/src/org/jetbrains/kotlin/asJava/KotlinWrappingLightClass.java
+++ b/compiler/light-classes/src/org/jetbrains/kotlin/asJava/KotlinWrappingLightClass.java
@@ -33,6 +33,7 @@ import com.intellij.util.containers.ContainerUtil;
 import kotlin.Function1;
 import kotlin.KotlinPackage;
 import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
 import org.jetbrains.kotlin.idea.JetLanguage;
 import org.jetbrains.kotlin.name.FqName;
 import org.jetbrains.kotlin.psi.*;
@@ -46,6 +47,10 @@ public abstract class KotlinWrappingLightClass extends AbstractLightClass implem
         super(manager, JetLanguage.INSTANCE);
     }
 
+    @Nullable
+    @Override
+    public abstract JetClassOrObject getOrigin();
+
     @NotNull
     @Override
     public abstract PsiClass getDelegate();