From d2da1639f9687711d7db6d3f85d1a4439cfba476 Mon Sep 17 00:00:00 2001
From: Anna Kozlova <anna.kozlova@jetbrains.com>
Date: Wed, 1 Feb 2012 13:40:54 +0400
Subject: [PATCH] EA-33401 - PIEAE: PsiElementBase.getContainingFile

---
 .../daemon/impl/quickfix/ChangeMethodSignatureFromUsageFix.java  | 1 +
 1 file changed, 1 insertion(+)

diff --git a/java/java-impl/src/com/intellij/codeInsight/daemon/impl/quickfix/ChangeMethodSignatureFromUsageFix.java b/java/java-impl/src/com/intellij/codeInsight/daemon/impl/quickfix/ChangeMethodSignatureFromUsageFix.java
index ccdb81a65173..029b12d3e423 100644
--- a/java/java-impl/src/com/intellij/codeInsight/daemon/impl/quickfix/ChangeMethodSignatureFromUsageFix.java
+++ b/java/java-impl/src/com/intellij/codeInsight/daemon/impl/quickfix/ChangeMethodSignatureFromUsageFix.java
@@ -155,6 +155,7 @@ public class ChangeMethodSignatureFromUsageFix implements IntentionAction, HighP
     for (PsiExpression expression : myExpressions) {
       if (!expression.isValid()) return false;
     }
+    if (!mySubstitutor.isValid()) return false;
 
     myNewParametersInfo = getNewParametersInfo(myExpressions, myTargetMethod, mySubstitutor);
     if (myNewParametersInfo == null || formatTypesList(myNewParametersInfo, myContext) == null) return false;