From 1f611da99e9b6102d804e0f44d3820e615c8fa7a Mon Sep 17 00:00:00 2001
From: "Vassiliy.Kudryashov" <Vassiliy.Kudryashov@jetbrains.com>
Date: Wed, 18 Mar 2015 15:58:20 +0300
Subject: [PATCH] IDEA-137751 IAE on project closing

---
 .../com/intellij/openapi/wm/impl/ToolWindowManagerImpl.java | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/platform/platform-impl/src/com/intellij/openapi/wm/impl/ToolWindowManagerImpl.java b/platform/platform-impl/src/com/intellij/openapi/wm/impl/ToolWindowManagerImpl.java
index 46f66ed21dfb..847d78f3874b 100644
--- a/platform/platform-impl/src/com/intellij/openapi/wm/impl/ToolWindowManagerImpl.java
+++ b/platform/platform-impl/src/com/intellij/openapi/wm/impl/ToolWindowManagerImpl.java
@@ -1824,8 +1824,10 @@ public final class ToolWindowManagerImpl extends ToolWindowManagerEx implements
 
   private void appendUpdateToolWindowsPaneCmd(final List<FinalizableCommand> commandsList) {
     final JRootPane rootPane = myFrame.getRootPane();
-    final FinalizableCommand command = new UpdateRootPaneCmd(rootPane, myWindowManager.getCommandProcessor());
-    commandsList.add(command);
+    if (rootPane != null) {
+      final FinalizableCommand command = new UpdateRootPaneCmd(rootPane, myWindowManager.getCommandProcessor());
+      commandsList.add(command);
+    }
   }
 
   private EditorsSplitters getSplittersToFocus() {