From c596224fce3c3e99c39ea241a129b7640270fd89 Mon Sep 17 00:00:00 2001
From: "Denis.Zhdanov" <Denis.Zhdanov@jetbrains.com>
Date: Thu, 15 Dec 2011 17:13:57 +0400
Subject: [PATCH] EA-31477 - assert: DocumentImpl.removeDocumentListener

---
 .../src/com/intellij/openapi/editor/impl/EditorImpl.java        | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/platform/platform-impl/src/com/intellij/openapi/editor/impl/EditorImpl.java b/platform/platform-impl/src/com/intellij/openapi/editor/impl/EditorImpl.java
index a496eb3ceccc..6ae7e4c2ec0a 100644
--- a/platform/platform-impl/src/com/intellij/openapi/editor/impl/EditorImpl.java
+++ b/platform/platform-impl/src/com/intellij/openapi/editor/impl/EditorImpl.java
@@ -885,7 +885,7 @@ public final class EditorImpl extends UserDataHolderBase implements EditorEx, Hi
   public void setHighlighter(@NotNull EditorHighlighter highlighter) {
     assertIsDispatchThread();
     final Document document = getDocument();
-    if (myHighlighter != null) {
+    if (myHighlighter != null && !isDisposed()) {
       document.removeDocumentListener(myHighlighter);
     }