From 862b62df424716badc3dd529e9cdc07ec2aa8d1f Mon Sep 17 00:00:00 2001
From: Rustam Vishnyakov <rustam.vishnyakov@jetbrains.com>
Date: Thu, 19 Jul 2018 18:37:16 +0300
Subject: [PATCH] IDEA-194957 NPE on closing Project in IntelliJ IDEA

---
 .../src/com/intellij/openapi/editor/impl/EditorImpl.java      | 4 +++-
 1 file changed, 3 insertions(+), 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 270591ac0ee2..948782ef2a21 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
@@ -946,7 +946,9 @@ public final class EditorImpl extends UserDataHolderBase implements EditorEx, Hi
     myEditorComponent.removeMouseMotionListener(myMouseMotionListener);
     myGutterComponent.removeMouseMotionListener(myMouseMotionListener);
 
-    CodeStyleSettingsManager.getInstance(myProject).removeListener(this);
+    if (myProject == null || !myProject.isDisposed()) {
+      CodeStyleSettingsManager.getInstance(myProject).removeListener(this);
+    }
 
     if (myBulkUpdateListener != null) {
       ((DocumentImpl)myDocument).removeInternalBulkModeListener(myBulkUpdateListener);