From 6d901b6953a1fcfdd1de6491cf71fcb072de71d6 Mon Sep 17 00:00:00 2001
From: Liana Bakradze <liana.bakradze@jetbrains.com>
Date: Wed, 10 Sep 2014 16:05:14 +0400
Subject: [PATCH] EDU-156 exception while closing project

---
 .../jetbrains/plugins/coursecreator/CCProjectComponent.java   | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/python/edu/course-creator/src/org/jetbrains/plugins/coursecreator/CCProjectComponent.java b/python/edu/course-creator/src/org/jetbrains/plugins/coursecreator/CCProjectComponent.java
index 20e7753e0247..8b524dbffd4b 100644
--- a/python/edu/course-creator/src/org/jetbrains/plugins/coursecreator/CCProjectComponent.java
+++ b/python/edu/course-creator/src/org/jetbrains/plugins/coursecreator/CCProjectComponent.java
@@ -96,7 +96,9 @@ public class CCProjectComponent implements ProjectComponent {
   }
 
   public void projectClosed() {
-    VirtualFileManager.getInstance().removeVirtualFileListener(myListener);
+    if (myListener != null) {
+      VirtualFileManager.getInstance().removeVirtualFileListener(myListener);
+    }
   }
 
   private class FileDeletedListener extends VirtualFileAdapter {