From fb4ed54a3d19cecd56eea004b063afddf757baec Mon Sep 17 00:00:00 2001
From: "Denis.Zhdanov" <Denis.Zhdanov@jetbrains.com>
Date: Mon, 9 Jul 2012 19:16:04 +0400
Subject: [PATCH] IDEA-66333 Quick documentation lookup on mouse hover

No more NPE here
---
 .../documentation/QuickDocOnMouseOverManager.java         | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/platform/lang-impl/src/com/intellij/codeInsight/documentation/QuickDocOnMouseOverManager.java b/platform/lang-impl/src/com/intellij/codeInsight/documentation/QuickDocOnMouseOverManager.java
index be88c67528b0..82da337ffdd4 100644
--- a/platform/lang-impl/src/com/intellij/codeInsight/documentation/QuickDocOnMouseOverManager.java
+++ b/platform/lang-impl/src/com/intellij/codeInsight/documentation/QuickDocOnMouseOverManager.java
@@ -169,10 +169,14 @@ public class QuickDocOnMouseOverManager {
 
       // Skip the event if the control is shown because of explicit 'show quick doc' action call.
       WeakReference<DocumentationManager> ref = myDocumentationManager;
-      if (ref == null || ref.get() == null || !ref.get().isCloseOnSneeze()) {
+      if (ref == null) {
         return;
       }
-      
+      DocumentationManager manager = ref.get();
+      if (manager == null || !manager.isCloseOnSneeze()) {
+        return;
+      }
+
       // Skip the event if the mouse is under the opened quick doc control.
       Point hintLocation = hint.getLocationOnScreen();
       Dimension hintSize = hint.getSize();