From 9b5dd38b18e4561c99a35e7f1e1f763aefa3c8aa Mon Sep 17 00:00:00 2001
From: Dmitry Batkovich <dmitry.batkovich@jetbrains.com>
Date: Tue, 14 Mar 2017 13:00:48 +0300
Subject: [PATCH] type migration: further fix root type conversion for varargs
 migration

---
 .../typeMigration/rules/RootTypeConversionRule.java            | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/java/java-impl/src/com/intellij/refactoring/typeMigration/rules/RootTypeConversionRule.java b/java/java-impl/src/com/intellij/refactoring/typeMigration/rules/RootTypeConversionRule.java
index 75f4c8f2092a..b628abf857ae 100644
--- a/java/java-impl/src/com/intellij/refactoring/typeMigration/rules/RootTypeConversionRule.java
+++ b/java/java-impl/src/com/intellij/refactoring/typeMigration/rules/RootTypeConversionRule.java
@@ -119,6 +119,9 @@ public class RootTypeConversionRule extends TypeConversionRule {
 
                   final PsiType migrationType = methodTypeParamsSubstitutor.substitute(type);
                   if (!originalType.equals(migrationType) && !areParametersAssignable(migrationType, i, actualParams)) {
+                    if (migrationType instanceof PsiEllipsisType && actualParams.length != migrationParams.length) {
+                      return null;
+                    }
                     labeler.migrateExpressionType(actualParams[i], migrationType, context, false, true);
                   }
                 }