From e9bd45eff0f6cbb7ca7246e5c255e943e92a0106 Mon Sep 17 00:00:00 2001
From: peter <peter@jetbrains.com>
Date: Mon, 4 Nov 2013 18:20:05 +0100
Subject: [PATCH] RootIndex: cache null infos for foreign directories

---
 .../lang-impl/src/com/intellij/openapi/roots/impl/RootIndex.java | 1 +
 1 file changed, 1 insertion(+)

diff --git a/platform/lang-impl/src/com/intellij/openapi/roots/impl/RootIndex.java b/platform/lang-impl/src/com/intellij/openapi/roots/impl/RootIndex.java
index 73e475e22242..ae6009ca0915 100644
--- a/platform/lang-impl/src/com/intellij/openapi/roots/impl/RootIndex.java
+++ b/platform/lang-impl/src/com/intellij/openapi/roots/impl/RootIndex.java
@@ -337,6 +337,7 @@ class RootIndex {
       }
     }
 
+    myInfoCache.put(dir, DirectoryInfo.EMPTY);
     return null;
   }