Generated code for previous commit.

1 files changed, 2 insertions, 2 deletions

diff --git a/csharp/src/Google.Protobuf/WellKnownTypes/Any.cs b/csharp/src/Google.Protobuf/WellKnownTypes/Any.cs
index 86c8552f..93395871 100644
--- a/csharp/src/Google.Protobuf/WellKnownTypes/Any.cs
+++ b/csharp/src/Google.Protobuf/WellKnownTypes/Any.cs
@@ -71,7 +71,7 @@ namespace Google.Protobuf.WellKnownTypes {
     public string TypeUrl {
       get { return typeUrl_; }
       set {
-        typeUrl_ = value ?? "";
+        typeUrl_ = pb::Preconditions.CheckNotNull(value, "value");
       }
     }
 
@@ -80,7 +80,7 @@ namespace Google.Protobuf.WellKnownTypes {
     public pb::ByteString Value {
       get { return value_; }
       set {
-        value_ = value ?? pb::ByteString.Empty;
+        value_ = pb::Preconditions.CheckNotNull(value, "value");
       }
     }