Source: Microsoft Support

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The Customer gets the below exception when trying to call a Generic Method on the Remoting server which is overloaded:

Ex.>

Generic Overloaded Mehod:

public int OverloadedMethod<T>(int A, T B){…}

public int OverloadedMethod<T>(int A, int B, T C) {…}

 

 

System.NullReferenceException: Object reference not set to an instance of an object.

 

Server stack trace:

   at System.Runtime.Remoting.Messaging.MethodCall.ResolveMethod(Boolean bThrowIfNotResolved)

   at System.Runtime.Remoting.Messaging.MethodCall..ctor(Object handlerObject, BinaryMethodCallMessage smuggledMsg)

   at System.Runtime.Serialization.Formatters.Binary.BinaryMethodCall.ReadArray(Object[] callA, Object handlerObject)

   at System.Runtime.Serialization.Formatters.Binary.ObjectReader.Deserialize(HeaderHandler handler, __BinaryParser serParser, Boolean fCheck, Boolean

 isCrossAppDomain, IMethodCallMessage methodCallMessage)

   at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize(Stream serializationStream, HeaderHandler handler, Boolean fCheck, Bo

olean isCrossAppDomain, IMethodCallMessage methodCallMessage)

   at System.Runtime.Remoting.Channels.CoreChannel.DeserializeBinaryRequestMessage(String objectUri, Stream inputStream, Boolean bStrictBinding, TypeF

ilterLevel securityLevel)

   at System.Runtime.Remoting.Channels.BinaryServerFormatterSink.ProcessMessage(IServerChannelSinkStack sinkStack, IMessage requestMsg, ITransportHead

ers requestHeaders, Stream requestStream, IMessage& responseMsg, ITransportHeaders& responseHeaders, Stream& responseStream)

 

Exception rethrown at [0]:

   at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)

   at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)

 

.Net does not correctly resolve to overloaded Generic methods

This is a bug in .NET 2.0

Use the appropriate method below for the method which you trying to invoke from the remoting client:

 

Method 1:  Change the method signature to take the parameter as Object or inbuild types instead of a Generic w/ the same method name it would work fine (So its still Overloaded but not Generic)

 

Method 2:  Change the method name (So it is not overloaded but still Generic) with the same parameter types it would work fine.

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