From c484d22c8a58136609ba89a8886dfe903e43d8eb Mon Sep 17 00:00:00 2001
From: Alexander Kirillin <Alexander.Kirillin@jetbrains.com>
Date: Mon, 17 Jun 2013 13:21:27 +0400
Subject: [PATCH] EA-46366

GitOrigin-RevId: 81b5172b9a827c1567f51249ade1e40ab1afa6f5
---
 .../changeSignature/JetChangeSignatureUsageProcessor.java    | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/plugins/kotlin/idea/src/org/jetbrains/jet/plugin/refactoring/changeSignature/JetChangeSignatureUsageProcessor.java b/plugins/kotlin/idea/src/org/jetbrains/jet/plugin/refactoring/changeSignature/JetChangeSignatureUsageProcessor.java
index 77b83d1665bb..4127364e8602 100644
--- a/plugins/kotlin/idea/src/org/jetbrains/jet/plugin/refactoring/changeSignature/JetChangeSignatureUsageProcessor.java
+++ b/plugins/kotlin/idea/src/org/jetbrains/jet/plugin/refactoring/changeSignature/JetChangeSignatureUsageProcessor.java
@@ -126,6 +126,11 @@ public class JetChangeSignatureUsageProcessor implements ChangeSignatureUsagePro
     @Override
     public MultiMap<PsiElement, String> findConflicts(ChangeInfo info, Ref<UsageInfo[]> refUsages) {
         MultiMap<PsiElement, String> result = new MultiMap<PsiElement, String>();
+
+        if (!(info instanceof JetChangeInfo)) {
+            return result;
+        }
+
         Set<String> parameterNames = new HashSet<String>();
         JetChangeInfo changeInfo = (JetChangeInfo) info;
         PsiElement function = info.getMethod();