From 60157df6579456e422e60f5b8eef02379b706844 Mon Sep 17 00:00:00 2001
From: Dmitry Batrak <Dmitry.Batrak@jetbrains.com>
Date: Tue, 24 Nov 2015 12:09:13 +0300
Subject: [PATCH] avoid exception when disabling new rendering and closing
 existing open editor

---
 .../openapi/fileEditor/impl/text/TextEditorProvider.java       | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/platform/platform-impl/src/com/intellij/openapi/fileEditor/impl/text/TextEditorProvider.java b/platform/platform-impl/src/com/intellij/openapi/fileEditor/impl/text/TextEditorProvider.java
index 85e0c6b6299b..dc7d56ad572a 100644
--- a/platform/platform-impl/src/com/intellij/openapi/fileEditor/impl/text/TextEditorProvider.java
+++ b/platform/platform-impl/src/com/intellij/openapi/fileEditor/impl/text/TextEditorProvider.java
@@ -21,6 +21,7 @@ import com.intellij.openapi.application.ApplicationManager;
 import com.intellij.openapi.diagnostic.Logger;
 import com.intellij.openapi.editor.*;
 import com.intellij.openapi.editor.ex.util.EditorUtil;
+import com.intellij.openapi.editor.impl.EditorImpl;
 import com.intellij.openapi.fileEditor.*;
 import com.intellij.openapi.fileEditor.ex.FileEditorManagerEx;
 import com.intellij.openapi.fileTypes.BinaryFileTypeDecompilers;
@@ -31,6 +32,7 @@ import com.intellij.openapi.project.ProjectManager;
 import com.intellij.openapi.util.Disposer;
 import com.intellij.openapi.util.Key;
 import com.intellij.openapi.util.UserDataHolderBase;
+import com.intellij.openapi.util.registry.Registry;
 import com.intellij.openapi.vfs.VirtualFile;
 import com.intellij.pom.Navigatable;
 import com.intellij.psi.SingleRootFileViewProvider;
@@ -207,6 +209,7 @@ public class TextEditorProvider implements FileEditorProvider, DumbAware {
 
   protected TextEditorState getStateImpl(final Project project, @NotNull Editor editor, @NotNull FileEditorStateLevel level){
     TextEditorState state = new TextEditorState();
+    if (!Registry.is("editor.new.rendering") && editor instanceof EditorImpl && ((EditorImpl)editor).myUseNewRendering) return state;
     CaretModel caretModel = editor.getCaretModel();
     if (caretModel.supportsMultipleCarets()) {
       List<CaretState> caretsAndSelections = caretModel.getCaretsAndSelections();