From 3b92eb381624b61dc481ce3b065d9354f409d2cb Mon Sep 17 00:00:00 2001
From: anna <Anna.Kozlova@jetbrains.com>
Date: Fri, 24 Feb 2012 16:02:15 +0100
Subject: [PATCH] EA-34048 - UOE: RefClassImpl.removeBase

---
 .../com/intellij/codeInspection/reference/RefClassImpl.java   | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/java/java-impl/src/com/intellij/codeInspection/reference/RefClassImpl.java b/java/java-impl/src/com/intellij/codeInspection/reference/RefClassImpl.java
index 725af5179d15..e851403e416b 100644
--- a/java/java-impl/src/com/intellij/codeInspection/reference/RefClassImpl.java
+++ b/java/java-impl/src/com/intellij/codeInspection/reference/RefClassImpl.java
@@ -427,6 +427,10 @@ public class RefClassImpl extends RefJavaElementImpl implements RefClass {
   private void removeBase(RefClass superClass) {
     final Set<RefClass> baseClasses = getBaseClasses();
     if (baseClasses.contains(superClass)) {
+      if (baseClasses.size() == 1) {
+        myBases = null;
+        return;
+      }
       baseClasses.remove(superClass);
     }
   }