From e1bcc2e64d5fdc48906d0f4550d2539fb5ac7bdd Mon Sep 17 00:00:00 2001
From: mcilwain <mcilwain@google.com>
Date: Tue, 5 Jun 2018 07:14:13 -0700
Subject: [PATCH] Add relevant exception message for checkArgumentNotNull usage

I ran into this while writing some other code and having the exception message
would have made it easier to debug.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=199292321
---
 java/google/registry/model/domain/GracePeriod.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/java/google/registry/model/domain/GracePeriod.java b/java/google/registry/model/domain/GracePeriod.java
index b56eaaa53..0e85435e8 100644
--- a/java/google/registry/model/domain/GracePeriod.java
+++ b/java/google/registry/model/domain/GracePeriod.java
@@ -137,7 +137,7 @@ public class GracePeriod extends ImmutableObject {
       DateTime expirationTime,
       String clientId,
       Key<BillingEvent.Recurring> billingEventRecurring) {
-    checkArgumentNotNull(billingEventRecurring);
+    checkArgumentNotNull(billingEventRecurring, "billingEventRecurring cannot be null");
     return createInternal(type, expirationTime, clientId, null, billingEventRecurring);
   }