Imported Upstream version 2.0.0.11992upstream/2.0.0.11992

1 files changed, 2 insertions, 8 deletions

diff --git a/src/mscorlib/shared/System/DBNull.cs b/src/mscorlib/shared/System/DBNull.cs
index 486eb72f2a..4f4d64bf66 100644
--- a/src/mscorlib/shared/System/DBNull.cs
+++ b/src/mscorlib/shared/System/DBNull.cs
@@ -6,23 +6,17 @@ using System.Runtime.Serialization;
 
 namespace System
 {
-    [Serializable]
     public sealed class DBNull : ISerializable, IConvertible
     {
         private DBNull()
         {
         }
-
-        private DBNull(SerializationInfo info, StreamingContext context)
-        {
-            throw new NotSupportedException(SR.NotSupported_DBNullSerial);
-        }
-
+        
         public static readonly DBNull Value = new DBNull();
 
         public void GetObjectData(SerializationInfo info, StreamingContext context)
         {
-            UnitySerializationHolder.GetUnitySerializationInfo(info, UnitySerializationHolder.NullUnity, null, null);
+            throw new PlatformNotSupportedException();
         }
 
         public override string ToString()