From edae81da7196026ddc34f5555ac5c7e276d86963 Mon Sep 17 00:00:00 2001
From: Kirill Likhodedov <Kirill.Likhodedov@gmail.com>
Date: Sat, 6 Aug 2011 14:01:43 +0400
Subject: [PATCH] @Nullable

---
 .../src/com/intellij/openapi/fileEditor/FileDocumentManager.java | 1 +
 .../platform-api/src/com/intellij/openapi/wm/WindowManager.java  | 1 +
 .../openapi/fileEditor/impl/FileDocumentManagerImpl.java         | 1 +
 .../src/com/intellij/openapi/wm/impl/WindowManagerImpl.java      | 1 +
 4 files changed, 4 insertions(+)

diff --git a/platform/core-api/src/com/intellij/openapi/fileEditor/FileDocumentManager.java b/platform/core-api/src/com/intellij/openapi/fileEditor/FileDocumentManager.java
index 801f9ec06596..4efc4c285078 100644
--- a/platform/core-api/src/com/intellij/openapi/fileEditor/FileDocumentManager.java
+++ b/platform/core-api/src/com/intellij/openapi/fileEditor/FileDocumentManager.java
@@ -34,6 +34,7 @@ public abstract class FileDocumentManager implements SavingRequestor {
   @Nullable
   public abstract Document getCachedDocument(@NotNull VirtualFile file);
 
+  @Nullable
   public abstract VirtualFile getFile(@NotNull Document document);
 
   public abstract void saveAllDocuments();
diff --git a/platform/platform-api/src/com/intellij/openapi/wm/WindowManager.java b/platform/platform-api/src/com/intellij/openapi/wm/WindowManager.java
index 358d2dabe271..223031cce55f 100644
--- a/platform/platform-api/src/com/intellij/openapi/wm/WindowManager.java
+++ b/platform/platform-api/src/com/intellij/openapi/wm/WindowManager.java
@@ -78,6 +78,7 @@ public abstract class WindowManager {
    * @param project
    * @return
    */
+  @Nullable
   public abstract StatusBar getStatusBar(Project project);
 
   /**
diff --git a/platform/platform-impl/src/com/intellij/openapi/fileEditor/impl/FileDocumentManagerImpl.java b/platform/platform-impl/src/com/intellij/openapi/fileEditor/impl/FileDocumentManagerImpl.java
index a5db747f014a..d1ded8f05e43 100644
--- a/platform/platform-impl/src/com/intellij/openapi/fileEditor/impl/FileDocumentManagerImpl.java
+++ b/platform/platform-impl/src/com/intellij/openapi/fileEditor/impl/FileDocumentManagerImpl.java
@@ -186,6 +186,7 @@ public class FileDocumentManagerImpl extends FileDocumentManager implements Appl
     }
   }
 
+  @Nullable
   public VirtualFile getFile(@NotNull Document document) {
     return document.getUserData(FILE_KEY);
   }
diff --git a/platform/platform-impl/src/com/intellij/openapi/wm/impl/WindowManagerImpl.java b/platform/platform-impl/src/com/intellij/openapi/wm/impl/WindowManagerImpl.java
index 1453f802b22b..c65c785199c6 100644
--- a/platform/platform-impl/src/com/intellij/openapi/wm/impl/WindowManagerImpl.java
+++ b/platform/platform-impl/src/com/intellij/openapi/wm/impl/WindowManagerImpl.java
@@ -438,6 +438,7 @@ public final class WindowManagerImpl extends WindowManagerEx implements Applicat
     return myWindowWatcher.suggestParentWindow(project);
   }
 
+  @Nullable
   public final StatusBar getStatusBar(final Project project) {
     if (!myProject2Frame.containsKey(project)) {
       return null;