From 88d3e3676ce43ac6ddc15e2cdc0009671eba8ca9 Mon Sep 17 00:00:00 2001
From: Andrey Breslav <andrey.breslav@jetbrains.com>
Date: Wed, 11 Apr 2012 12:18:47 +0400
Subject: [PATCH] Add Explicit Nullable annotation

---
 .../org/jetbrains/jet/lang/descriptors/Visibilities.java    | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/compiler/frontend/src/org/jetbrains/jet/lang/descriptors/Visibilities.java b/compiler/frontend/src/org/jetbrains/jet/lang/descriptors/Visibilities.java
index d3dfe5d72d8..8651ec3b4f3 100644
--- a/compiler/frontend/src/org/jetbrains/jet/lang/descriptors/Visibilities.java
+++ b/compiler/frontend/src/org/jetbrains/jet/lang/descriptors/Visibilities.java
@@ -16,15 +16,12 @@
 
 package org.jetbrains.jet.lang.descriptors;
 
-import com.google.common.collect.Lists;
 import com.google.common.collect.Maps;
 import com.google.common.collect.Sets;
-import com.intellij.psi.util.PsiTreeUtil;
 import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
 import org.jetbrains.jet.lang.resolve.DescriptorUtils;
 
-import java.util.ArrayList;
-import java.util.HashMap;
 import java.util.Map;
 import java.util.Set;
 
@@ -132,6 +129,7 @@ public class Visibilities {
         return firstIndex - secondIndex;
     }
 
+    @Nullable
     public static Integer compare(@NotNull Visibility first, @NotNull Visibility second) {
         Integer result = first.compareTo(second);
         if (result != null) {