From ef199042d824ef66caa791ff6c41be9d32e34010 Mon Sep 17 00:00:00 2001
From: "Maxim.Mossienko" <Maxim.Mossienko@jetbrains.com>
Date: Mon, 16 May 2011 19:58:28 +0400
Subject: [PATCH] check if alarm already disposed

---
 .../com/intellij/openapi/vcs/history/FileHistoryPanelImpl.java   | 1 +
 1 file changed, 1 insertion(+)

diff --git a/platform/vcs-impl/src/com/intellij/openapi/vcs/history/FileHistoryPanelImpl.java b/platform/vcs-impl/src/com/intellij/openapi/vcs/history/FileHistoryPanelImpl.java
index b7538b09a38b..5758a5c0b985 100644
--- a/platform/vcs-impl/src/com/intellij/openapi/vcs/history/FileHistoryPanelImpl.java
+++ b/platform/vcs-impl/src/com/intellij/openapi/vcs/history/FileHistoryPanelImpl.java
@@ -392,6 +392,7 @@ public class FileHistoryPanelImpl<S extends CommittedChangeList, U extends Chang
         }
         final boolean refresh = (! myInRefresh) && myHistorySession.shouldBeRefreshed();
         myUpdateAlarm.cancelAllRequests();
+        if (myUpdateAlarm.isDisposed()) return;
         myUpdateAlarm.addRequest(this, 20000);
 
         if (refresh) {