From 8e8614483b71899081476bba4898f07a69296701 Mon Sep 17 00:00:00 2001
From: Thiago Souza <thiago@elastic.co>
Date: Wed, 17 Aug 2016 19:54:42 -0300
Subject: [PATCH] Make exception message more descriptive Exception message
 should be more descriptive about what to do when inner_hit names colides.

Fixes https://github.com/elastic/elasticsearch/issues/19142
---
 .../elasticsearch/search/fetch/subphase/InnerHitsContext.java   | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core/src/main/java/org/elasticsearch/search/fetch/subphase/InnerHitsContext.java b/core/src/main/java/org/elasticsearch/search/fetch/subphase/InnerHitsContext.java
index cbcab09976554..44a6b13fd403d 100644
--- a/core/src/main/java/org/elasticsearch/search/fetch/subphase/InnerHitsContext.java
+++ b/core/src/main/java/org/elasticsearch/search/fetch/subphase/InnerHitsContext.java
@@ -80,7 +80,7 @@ public Map<String, BaseInnerHits> getInnerHits() {
     public void addInnerHitDefinition(BaseInnerHits innerHit) {
         if (innerHits.containsKey(innerHit.getName())) {
             throw new IllegalArgumentException("inner_hit definition with the name [" + innerHit.getName() +
-                    "] already exists. Use a different inner_hit name");
+                    "] already exists. Use a different inner_hit name or define one explicitly");
         }
 
         innerHits.put(innerHit.getName(), innerHit);