[Solved in 7.6.7] 7.6.6 Nullref checking webservice URL - VisualCron

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ErikC
Paid support Topic Starter

2015-06-08T09:19:09Z

Hi,

I cloned a webserice task and refreshed the URL. I received an NullrefereceException.

System.NullReferenceException: Object reference not set to an instance of an object.
   at UCTaskWebService.GIIMHDIBOBJFLAGNKGDIIPEHGMJJONDKBPIJ() in C:\sourcefiles\code\VisualCron\Tasks\Reflection\UCTaskWebService.vb:line 690
   at UCTaskWebService.BFLFKBEJMOFNJNKDIFCACLNKPGFOMMPMHABH(Object  , EventArgs  ) in C:\sourcefiles\code\VisualCron\Tasks\Reflection\UCTaskWebService.vb:line 664
   at System.Windows.Forms.Control.OnClick(EventArgs e)
   at Infragistics.Win.Misc.UltraButtonBase.OnClick(EventArgs e)
   at Infragistics.Win.Misc.UltraButton.OnMouseUp(MouseEventArgs e)
   at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

and

6/8/2015 11:14:19 AM	Debug	RemoveConnection->Enter
6/8/2015 11:14:19 AM	Debug	RemoveConnection->ConnClass->Before disconnect (WCF)
6/8/2015 11:14:19 AM	Debug	RemoveConnection->ConnClass->After disconnect (WCF)
6/8/2015 11:14:19 AM	Debug	RemoveConnection->Connection removed from dictionary.
6/8/2015 11:14:19 AM	Debug	Before sending ClientConnection (Delete)
6/8/2015 11:14:19 AM	Debug	MessageSend (ToAll) To (Empty) : ClientConnectionChange
6/8/2015 11:14:19 AM	Debug	RemoveConnection->Connection: uuid:26bef4a3-30d6-4b0b-b38c-cd6bb61a73fc;id=4 was removed
6/8/2015 11:14:19 AM	Debug	clsCommClientThread->Disconnected->Connection removed: uuid:26bef4a3-30d6-4b0b-b38c-cd6bb61a73fc;id=4
6/8/2015 11:14:19 AM	Debug	ConnectionManager_ConnectionRemoved->Connection removed (Server Event): uuid:26bef4a3-30d6-4b0b-b38c-cd6bb61a73fc;id=4
6/8/2015 11:14:19 AM	Err	ClientError: System.ServiceModel.CommunicationException: There was an error while trying to serialize parameter http://tempuri.org/:message. The InnerException message was 'Object graph for type 'System.Collections.Generic.List`1[[VisualCron.MRParam, VisualCron, Version=1.0.1.31600, Culture=neutral, PublicKeyToken=55f7a52402de1c04]]' contains cycles and cannot be serialized if reference tracking is disabled.'.  Please see InnerException for more details. ---> System.Runtime.Serialization.SerializationException: Object graph for type 'System.Collections.Generic.List`1[[VisualCron.MRParam, VisualCron, Version=1.0.1.31600, Culture=neutral, PublicKeyToken=55f7a52402de1c04]]' contains cycles and cannot be serialized if reference tracking is disabled.
   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.OnHandleReference(XmlWriterDelegator xmlWriter, Object obj, Boolean canContainCyclicReference)
   at WriteMRMethodToXml(XmlWriterDelegator , Object , XmlObjectSerializerWriteContext , ClassDataContract )
   at System.Runtime.Serialization.ClassDataContract.WriteXmlValue(XmlWriterDelegator xmlWriter, Object obj, XmlObjectSerializerWriteContext context)
   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.WriteDataContractValue(DataContract dataContract, XmlWriterDelegator xmlWriter, Object obj, RuntimeTypeHandle declaredTypeHandle)
   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.SerializeWithoutXsiType(DataContract dataContract, XmlWriterDelegator xmlWriter, Object obj, RuntimeTypeHandle declaredTypeHandle)
   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.InternalSerialize(XmlWriterDelegator xmlWriter, Object obj, Boolean isDeclaredType, Boolean writeXsiType, Int32 declaredTypeID, RuntimeTypeHandle declaredTypeHandle)
   at WriteMRParamToXml(XmlWriterDelegator , Object , XmlObjectSerializerWriteContext , ClassDataContract )
   at System.Runtime.Serialization.ClassDataContract.WriteXmlValue(XmlWriterDelegator xmlWriter, Object obj, XmlObjectSerializerWriteContext context)
   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.WriteDataContractValue(DataContract dataContract, XmlWriterDelegator xmlWriter, Object obj, RuntimeTypeHandle declaredTypeHandle)
   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.SerializeWithoutXsiType(DataContract dataContract, XmlWriterDelegator xmlWriter, Object obj, RuntimeTypeHandle declaredTypeHandle)
   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.InternalSerialize(XmlWriterDelegator xmlWriter, Object obj, Boolean isDeclaredType, Boolean writeXsiType, Int32 declaredTypeID, RuntimeTypeHandle declaredTypeHandle)
   at WriteArrayOfMRParamToXml(XmlWriterDelegator , Object , XmlObjectSerializerWriteContext , CollectionDataContract )
   at System.Runtime.Serialization.CollectionDataContract.WriteXmlValue(XmlWriterDelegator xmlWriter, Object obj, XmlObjectSerializerWriteContext context)
   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.WriteDataContractValue(DataContract dataContract, XmlWriterDelegator xmlWriter, Object obj, RuntimeTypeHandle declaredTypeHandle)
   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.SerializeWithoutXsiType(DataContract dataContract, XmlWriterDelegator xmlWriter, Object obj, RuntimeTypeHandle declaredTypeHandle)
   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.InternalSerialize(XmlWriterDelegator xmlWriter, Object obj, Boolean isDeclaredType, Boolean writeXsiType, Int32 declaredTypeID, RuntimeTypeHandle declaredTypeHandle)
   at WriteMRMethodToXml(XmlWriterDelegator , Object , XmlObjectSerializerWriteContext , ClassDataContract )
   at System.Runtime.Serialization.ClassDataContract.WriteXmlValue(XmlWriterDelegator xmlWriter, Object obj, XmlObjectSerializerWriteContext context)
   at System.Runti
6/8/2015 11:14:19 AM	Err	ClientError: System.ServiceModel.CommunicationObjectAbortedException: The communication object, System.ServiceModel.Channels.ServiceChannel, cannot be used for communication because it has been Aborted.

Server stack trace: 
   at System.ServiceModel.Channels.CommunicationObject.ThrowIfDisposedOrNotOpen()
   at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)
   at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
   at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)

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)
   at CommServer.Classes.WCF.IWCFServiceCallback.OnMessageReceived(Message message)
   at CommServer.Classes.WCF.WCFServiceContract.Send(Message message)

Regards,
Erik

Edited by moderator 2015-06-08T12:50:09Z | Reason: Not specified

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Support
Official support

2015-06-08T10:52:42Z

Can you update to 7.6.7? We have added some debugging. It should not crash but there should be a popup that is interesting for us.

Henrik
Support
http://www.visualcron.com
Please like VisualCron on facebook!

ErikC
Paid support Topic Starter

2015-06-08T11:13:09Z

Hi,

i installed 7.6.7 and did the same. Clone a Webservice task an refresh the URL.
I don't get a popup anymore wit hthe null reference, but a popup with a connection loss': 'failed to connect to server'.
After reconnecting I receive another popup with 'Error loading assembly'

Error reloading assembly: System.NullreferenceException: Object reference not set to an instande of an object.
UCTaskWebService.vb:line 703

In the logs:

6/8/2015 1:12:10 PM	Debug	2015-06-08 11:12:10.238: MessageRecived From (in) uuid:1341afd3-94e8-42e4-b6a0-185c6606bb3a;id=3: AssemblyInfoGet
6/8/2015 1:12:10 PM	Debug	2015-06-08 11:12:10.597: MessageSend To (Private) uuid:1341afd3-94e8-42e4-b6a0-185c6606bb3a;id=3: AssemblyInfo
6/8/2015 1:12:10 PM	Debug	RemoveConnection->Enter
6/8/2015 1:12:10 PM	Debug	RemoveConnection->ConnClass->Before disconnect (WCF)
6/8/2015 1:12:10 PM	Debug	RemoveConnection->ConnClass->After disconnect (WCF)
6/8/2015 1:12:10 PM	Debug	RemoveConnection->Connection removed from dictionary.
6/8/2015 1:12:10 PM	Debug	Before sending ClientConnection (Delete)
6/8/2015 1:12:10 PM	Debug	MessageSend (ToAll) To (Empty) : ClientConnectionChange
6/8/2015 1:12:10 PM	Debug	RemoveConnection->Connection: uuid:1341afd3-94e8-42e4-b6a0-185c6606bb3a;id=3 was removed
6/8/2015 1:12:10 PM	Debug	clsCommClientThread->Disconnected->Connection removed: uuid:1341afd3-94e8-42e4-b6a0-185c6606bb3a;id=3
6/8/2015 1:12:10 PM	Debug	ConnectionManager_ConnectionRemoved->Connection removed (Server Event): uuid:1341afd3-94e8-42e4-b6a0-185c6606bb3a;id=3
6/8/2015 1:12:10 PM	Err	ClientError: System.ServiceModel.CommunicationException: There was an error while trying to serialize parameter http://tempuri.org/:message. The InnerException message was 'Object graph for type 'System.Collections.Generic.List`1[[VisualCron.MRParam, VisualCron, Version=1.0.1.17715, Culture=neutral, PublicKeyToken=55f7a52402de1c04]]' contains cycles and cannot be serialized if reference tracking is disabled.'.  Please see InnerException for more details. ---> System.Runtime.Serialization.SerializationException: Object graph for type 'System.Collections.Generic.List`1[[VisualCron.MRParam, VisualCron, Version=1.0.1.17715, Culture=neutral, PublicKeyToken=55f7a52402de1c04]]' contains cycles and cannot be serialized if reference tracking is disabled.
   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.OnHandleReference(XmlWriterDelegator xmlWriter, Object obj, Boolean canContainCyclicReference)
   at WriteMRMethodToXml(XmlWriterDelegator , Object , XmlObjectSerializerWriteContext , ClassDataContract )
   at System.Runtime.Serialization.ClassDataContract.WriteXmlValue(XmlWriterDelegator xmlWriter, Object obj, XmlObjectSerializerWriteContext context)
   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.WriteDataContractValue(DataContract dataContract, XmlWriterDelegator xmlWriter, Object obj, RuntimeTypeHandle declaredTypeHandle)
   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.SerializeWithoutXsiType(DataContract dataContract, XmlWriterDelegator xmlWriter, Object obj, RuntimeTypeHandle declaredTypeHandle)
   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.InternalSerialize(XmlWriterDelegator xmlWriter, Object obj, Boolean isDeclaredType, Boolean writeXsiType, Int32 declaredTypeID, RuntimeTypeHandle declaredTypeHandle)
   at WriteMRParamToXml(XmlWriterDelegator , Object , XmlObjectSerializerWriteContext , ClassDataContract )
   at System.Runtime.Serialization.ClassDataContract.WriteXmlValue(XmlWriterDelegator xmlWriter, Object obj, XmlObjectSerializerWriteContext context)
   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.WriteDataContractValue(DataContract dataContract, XmlWriterDelegator xmlWriter, Object obj, RuntimeTypeHandle declaredTypeHandle)
   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.SerializeWithoutXsiType(DataContract dataContract, XmlWriterDelegator xmlWriter, Object obj, RuntimeTypeHandle declaredTypeHandle)
   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.InternalSerialize(XmlWriterDelegator xmlWriter, Object obj, Boolean isDeclaredType, Boolean writeXsiType, Int32 declaredTypeID, RuntimeTypeHandle declaredTypeHandle)
   at WriteArrayOfMRParamToXml(XmlWriterDelegator , Object , XmlObjectSerializerWriteContext , CollectionDataContract )
   at System.Runtime.Serialization.CollectionDataContract.WriteXmlValue(XmlWriterDelegator xmlWriter, Object obj, XmlObjectSerializerWriteContext context)
   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.WriteDataContractValue(DataContract dataContract, XmlWriterDelegator xmlWriter, Object obj, RuntimeTypeHandle declaredTypeHandle)
   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.SerializeWithoutXsiType(DataContract dataContract, XmlWriterDelegator xmlWriter, Object obj, RuntimeTypeHandle declaredTypeHandle)
   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.InternalSerialize(XmlWriterDelegator xmlWriter, Object obj, Boolean isDeclaredType, Boolean writeXsiType, Int32 declaredTypeID, RuntimeTypeHandle declaredTypeHandle)
   at WriteMRMethodToXml(XmlWriterDelegator , Object , XmlObjectSerializerWriteContext , ClassDataContract )
   at System.Runtime.Serialization.ClassDataContract.WriteXmlValue(XmlWriterDelegator xmlWriter, Object obj, XmlObjectSerializerWriteContext context)
   at System.Runti
6/8/2015 1:12:10 PM	Err	ClientError: System.ServiceModel.CommunicationObjectAbortedException: The communication object, System.ServiceModel.Channels.ServiceChannel, cannot be used for communication because it has been Aborted.

Server stack trace: 
   at System.ServiceModel.Channels.CommunicationObject.ThrowIfDisposedOrNotOpen()
   at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)
   at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
   at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)

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)
   at CommServer.Classes.WCF.IWCFServiceCallback.OnMessageReceived(Message message)
   at CommServer.Classes.WCF.WCFServiceContract.Send(Message message)
6/8/2015 1:12:12 PM	Debug	ConnectionManager_ConnectionAdded->ClientConnected: uuid:1341afd3-94e8-42e4-b6a0-185c6606bb3a;id=4
6/8/2015 1:12:12 PM	Debug	Before sending ClientConnection (Insert)
6/8/2015 1:12:12 PM	Debug	MessageSend (ToAll) To (Empty) : ClientConnectionChange
6/8/2015 1:12:12 PM	Debug	MessageSend (ToAll) To (Empty) : ClientConnectionChange

Regards
Erik

Uses Visualcron since 2006.

Support
Official support

2015-06-08T11:15:25Z

When did you do this? We updated the exe about 3 hours ago.

Henrik
Support
http://www.visualcron.com
Please like VisualCron on facebook!

ErikC
Paid support Topic Starter

2015-06-08T11:17:41Z

Just now.

Uses Visualcron since 2006.

Support
Official support

2015-06-08T12:07:45Z

Please re-download and test again:

http://www.visualcron.co....aspx?g=posts&t=4994

Henrik
Support
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Please like VisualCron on facebook!

ErikC
Paid support Topic Starter

2015-06-08T12:23:57Z

Hi Henrik,

Issue is fixed. No popup anymore, no client crash. The methods are refreshed again like it should be.

Thanks,
Erik

Uses Visualcron since 2006.

Support
Official support

2015-06-08T12:49:44Z

Thanks for the report and feedback!

Henrik
Support
http://www.visualcron.com
Please like VisualCron on facebook!

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