From 417c41b6cbf364a50a1c00b44117f577d5ad54e9 Mon Sep 17 00:00:00 2001
From: ST-DDT <ST-DDT@gmx.de>
Date: Tue, 13 Nov 2018 17:35:47 +0100
Subject: [PATCH] stub: fix null check in MetadataUtils.

Fixes #5045
---
 stub/src/main/java/io/grpc/stub/MetadataUtils.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/stub/src/main/java/io/grpc/stub/MetadataUtils.java b/stub/src/main/java/io/grpc/stub/MetadataUtils.java
index ad23e4ef44..609df039ab 100644
--- a/stub/src/main/java/io/grpc/stub/MetadataUtils.java
+++ b/stub/src/main/java/io/grpc/stub/MetadataUtils.java
@@ -65,7 +65,7 @@ public final class MetadataUtils {
 
     // Non private to avoid synthetic class
     HeaderAttachingClientInterceptor(Metadata extraHeaders) {
-      this.extraHeaders = checkNotNull(extraHeaders, extraHeaders);
+      this.extraHeaders = checkNotNull(extraHeaders, "extraHeaders");
     }
 
     @Override