From 834ca5e9f33ce79b0d5836ad0d46b172c20b168f Mon Sep 17 00:00:00 2001
From: Anna Kozlova <anna.kozlova@jetbrains.com>
Date: Tue, 6 Jun 2017 17:28:19 +0300
Subject: [PATCH] AIOOBE (IDEA-174007)

---
 .../IntroduceFunctionalVariableHandler.java                  | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/java/java-impl/src/com/intellij/refactoring/introduceVariable/IntroduceFunctionalVariableHandler.java b/java/java-impl/src/com/intellij/refactoring/introduceVariable/IntroduceFunctionalVariableHandler.java
index c47ddc0ef168..a30469cad62e 100644
--- a/java/java-impl/src/com/intellij/refactoring/introduceVariable/IntroduceFunctionalVariableHandler.java
+++ b/java/java-impl/src/com/intellij/refactoring/introduceVariable/IntroduceFunctionalVariableHandler.java
@@ -57,6 +57,11 @@ public class IntroduceFunctionalVariableHandler extends IntroduceVariableHandler
     ExtractMethodHandler.selectAndPass(project, editor, file, new Pass<PsiElement[]>() {
       @Override
       public void pass(PsiElement[] elements) {
+        if (elements.length == 0) {
+          String message = RefactoringBundle.getCannotRefactorMessage(RefactoringBundle.message("selected.block.should.represent.a.set.of.statements.or.an.expression"));
+          showErrorMessage(project , editor, message);
+          return;
+        }
         PsiElement anchorStatement = RefactoringUtil.getParentStatement(elements[0], false);
         PsiElement tempContainer = checkAnchorStatement(project, editor, anchorStatement);
         if (tempContainer == null) return;