From 55ee980f0ce26ada3855f964f59d7e260ef29ae3 Mon Sep 17 00:00:00 2001
From: "Maxim.Mossienko" <Maxim.Mossienko@jetbrains.com>
Date: Mon, 20 Jan 2014 17:42:27 +0100
Subject: [PATCH] IDEA-118211 - also avoid double dispose

---
 .../src/com/intellij/util/indexing/FileBasedIndexImpl.java       | 1 +
 1 file changed, 1 insertion(+)

diff --git a/platform/lang-impl/src/com/intellij/util/indexing/FileBasedIndexImpl.java b/platform/lang-impl/src/com/intellij/util/indexing/FileBasedIndexImpl.java
index 5538724795f6..bf687a8ff3e9 100644
--- a/platform/lang-impl/src/com/intellij/util/indexing/FileBasedIndexImpl.java
+++ b/platform/lang-impl/src/com/intellij/util/indexing/FileBasedIndexImpl.java
@@ -2470,6 +2470,7 @@ public class FileBasedIndexImpl extends FileBasedIndex {
 
   @Override
   public void removeIndexableSet(@NotNull IndexableFileSet set) {
+    if (!myIndexableSetToProjectMap.containsKey(set)) return; // avoid second unfiltered forceUpdate
     myChangedFilesCollector.forceUpdate(myIndexableSetToProjectMap.get(set), null, null, true);
     IndexingStamp.flushCaches();
     myIndexableSets.remove(set);