From 21f14681e19ad284899329b2bbbcbf0f0ec36b68 Mon Sep 17 00:00:00 2001
From: Lai Jiang <jianglai@google.com>
Date: Thu, 12 Dec 2019 13:06:43 -0500
Subject: [PATCH] Fix null pointer excpetion bug (#407)

The factory method passes a null trustedCertificates instead of an empty
list.
---
 .../registry/networking/handler/SslClientInitializer.java       | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/networking/src/main/java/google/registry/networking/handler/SslClientInitializer.java b/networking/src/main/java/google/registry/networking/handler/SslClientInitializer.java
index 15c5781ab..6c4bfc809 100644
--- a/networking/src/main/java/google/registry/networking/handler/SslClientInitializer.java
+++ b/networking/src/main/java/google/registry/networking/handler/SslClientInitializer.java
@@ -106,7 +106,7 @@ public class SslClientInitializer<C extends Channel> extends ChannelInitializer<
         SslContextBuilder.forClient()
             .sslProvider(sslProvider)
             .trustManager(
-                trustedCertificates.isEmpty()
+                trustedCertificates == null || trustedCertificates.isEmpty()
                     ? null
                     : trustedCertificates.toArray(new X509Certificate[0]));