From 20ee27d06e9f6fe3225afc65ec72d018c9716e19 Mon Sep 17 00:00:00 2001
From: Vassiliy <vassiliy.kudryashov@jetbrains.com>
Date: Wed, 30 Oct 2013 13:24:09 +0400
Subject: [PATCH] NPE fix

---
 .../com/intellij/openapi/wm/impl/ToolWindowManagerImpl.java  | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/platform/platform-impl/src/com/intellij/openapi/wm/impl/ToolWindowManagerImpl.java b/platform/platform-impl/src/com/intellij/openapi/wm/impl/ToolWindowManagerImpl.java
index ecfaf0c9cf7f..c2b7e7bc0d4f 100644
--- a/platform/platform-impl/src/com/intellij/openapi/wm/impl/ToolWindowManagerImpl.java
+++ b/platform/platform-impl/src/com/intellij/openapi/wm/impl/ToolWindowManagerImpl.java
@@ -458,7 +458,10 @@ public final class ToolWindowManagerImpl extends ToolWindowManagerEx implements
         if (isToolWindowVisible(id)) {
           hideToolWindow(id, true);
         }
-        getStripeButton(id).setEnabled(false);
+        StripeButton button = getStripeButton(id);
+        if (button != null) {
+          button.setEnabled(false);
+        }
       }
     }
   }