[#CCNET-1229] NullReferenceException viewing web dashboard

CruiseControl .NET

NullReferenceException viewing web dashboard

Created: 25/Aug/08 12:51 PM Updated: 01/Oct/08 02:30 PM

Component/s:

Web App

Affects Version/s:

1.4.1

Fix Version/s:

None

Original Estimate:	Unknown	Remaining Estimate:	Unknown	Time Spent:	Unknown
File Attachments:	1. Check for null.patch (0.5 kb)
Environment:	Windows Server 2008

Description

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Trying to view web dashboard gives a null reference exception:

[NullReferenceException: Object reference not set to an instance of an object.]
   ThoughtWorks.CruiseControl.WebDashboard.Dashboard.CruiseObjectSourceInitializer.SetupObjectSourceForRequest(HttpContext context) +2360
   ThoughtWorks.CruiseControl.WebDashboard.MVC.ASPNET.HttpHandler.ProcessRequest(HttpContext context) +173
   System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +181
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +75

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David Gardiner [25/Aug/08 12:52 PM]

This fixes the problem.

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Ross Patterson [25/Aug/08 01:24 PM]

That's weird - it shouldn't be possible for pluginConfig.BuildPlugins[] to have an entry that is null. I don't think NetReflector is supposed to be able to create that from your dashboard.config file.

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David Gardiner [25/Aug/08 08:45 PM]

I've narrowed it down to the presence of <gallioAttachmentBuildPlugin /> in the dashboard.config file.

Not sure if there's a compatibility issue there or something.

I'll investigate further.

-dave

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David Gardiner [25/Aug/08 10:58 PM]

ok.. slightly embarrassing. I forgot to copy CCNet.Gallio.WebDashboard.Plugin.dll into the bin folder.

Still might be worth adding the null checks anyway just for robustness (and to help it survive forgetful people)

-dave

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Ross Patterson [26/Aug/08 07:42 AM]

Thanks for the update. It's still pretty weird - NetReflector should have thrown an exception when loading your dashboard.config file, which should have been logged somewhere and should have made the dashboard fail. I'll look into that side of it a bit.

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Ross Patterson [01/Oct/08 02:30 PM]

NetReflector theoretically doesn't do what David said it did. If there's a bug, it's not a CCNET bug, but rather one in NetReflector (which is a different project).