From 5bd82ea06e6518b3e90ca2bf9c080bfe26ac7a2f Mon Sep 17 00:00:00 2001
From: peter <peter@jetbrains.com>
Date: Mon, 21 Mar 2011 19:47:10 +0100
Subject: [PATCH] check tuple component type for null (EA-26251)

---
 .../jetbrains/plugins/groovy/gpp/GppTypeConverter.java    | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/plugins/groovy/src/org/jetbrains/plugins/groovy/gpp/GppTypeConverter.java b/plugins/groovy/src/org/jetbrains/plugins/groovy/gpp/GppTypeConverter.java
index 59418f7e2466..71e8f037023c 100644
--- a/plugins/groovy/src/org/jetbrains/plugins/groovy/gpp/GppTypeConverter.java
+++ b/plugins/groovy/src/org/jetbrains/plugins/groovy/gpp/GppTypeConverter.java
@@ -48,9 +48,11 @@ public class GppTypeConverter extends GrTypeConverter {
 
       final PsiType expectedComponent = PsiUtil.extractIterableTypeParameter(lType, false);
       if (expectedComponent != null &&
-          isMethodCallConversion(context) && TypesUtil.isAssignable(expectedComponent, tupleType.getParameters()[0], context) && 
-          hasDefaultConstructor(lType)) {
-        return true;
+          isMethodCallConversion(context)) {
+        PsiType tupleComponent = tupleType.getParameters()[0];
+        if (tupleComponent != null && TypesUtil.isAssignable(expectedComponent, tupleComponent, context) && hasDefaultConstructor(lType)) {
+          return true;
+        }
       }
 
       if (lType instanceof PsiClassType && hasTypedContext(context)) {