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Exception: Object reference not set to an instance of an object

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Gary
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Gary asked on 18 Apr 2014, 11:37 PM
Hi,

Really great product. It works so well that I purchased JustCode for the debugging capability (which btw works about 100 times faster than Reflector).

I have come across a particular assembly namespace for which the following exception is thrown for several of the classes in this namespace:

   [PipeDesigner(typeof(RssAtomPipeImportDesignerView), typeof(
Current member / type: Telerik.Sitefinity.Publishing.Pipes.RSSInboundPipe
File path: C:\Program Files (x86)\Telerik\Sitefinity 5.3\Projects\Default8\bin\Telerik.Sitefinity.dll
 
Product version: 2014.1.225.0
Object reference not set to an instance of an object.
at Ÿ˜.š.(Exception ƒ, IMemberDefinition ) in c:\Builds\245\Behemoth\ReleaseBranch Production Build\Sources\Decompiler\Cecil.Decompiler\Languages\BaseLanguageWriter.cs:line 16777215
at Ÿ˜.š.œ•(›” ) in c:\Builds\245\Behemoth\ReleaseBranch Production Build\Sources\Decompiler\Cecil.Decompiler\Languages\BaseLanguageWriter.cs:line 891
at †”.–.Visit(„” ) in c:\Builds\245\Behemoth\ReleaseBranch Production Build\Sources\Decompiler\Cecil.Decompiler\Ast\BaseCodeVisitor.cs:line 273
at Ÿ˜..Visit(„” ) in c:\Builds\245\Behemoth\ReleaseBranch Production Build\Sources\Decompiler\Cecil.Decompiler\Languages\BaseImperativeLanguageWriter.cs:line 1044
at Ÿ˜.š.WriteInternal(IMemberDefinition , Boolean ˜‘, Boolean ™) in c:\Builds\245\Behemoth\ReleaseBranch Production Build\Sources\Decompiler\Cecil.Decompiler\Languages\BaseLanguageWriter.cs:line 462
at Ÿ˜..(TypeDefinition ‹, Boolean ˜‘, Boolean ™, Boolean ”˜) in c:\Builds\245\Behemoth\ReleaseBranch Production Build\Sources\Decompiler\Cecil.Decompiler\Languages\NamespaceImperativeLanguageWriter.cs:line 70
at Ÿ˜..(TypeDefinition ‹, –— ’, Boolean ˜‘, Boolean ™, Boolean ”˜) in c:\Builds\245\Behemoth\ReleaseBranch Production Build\Sources\Decompiler\Cecil.Decompiler\Languages\NamespaceImperativeLanguageWriter.cs:line 42
at .š.Ÿ—( ›, ˜ ‹Ž) in c:\Builds\245\Behemoth\ReleaseBranch Production Build\Sources\UI\JustDecompile.CodeViewer\Writers\TypeDefinitionCodeWriter.cs:line 52

As you can see, this occurs in the Telerik.Sitefinity.Publishing.Pipes namespace of Telerik.Sitefinity.dll version 6.3.5000.

Here is the failing line from above:

[PipeDesigner(typeof(RssAtomPipeImportDesignerView), typeof(

And here is what I think is the actual source code:

[PipeDesigner(typeof(RssAtomPipeImportDesignerView), null)]

So, for some reason, the null parameter is being parsed by the decompiler as a typeof, which fails. I looked at a couple of other classes and the common pattern seems be the null parameter in the attribute. 

I thought you would like to know about this issue. I use JustDecompile extensively on the Sitefinity assemblies and this is the first time I have come across this problem.

Regards,
Gary

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Vladi
Telerik team
answered on 23 Apr 2014, 02:14 PM
Hello Gary,

Many thanks for the good words and nice feedback. Happy users is what drives us forward! I've shared your feedback with the JD and JC teams, and they really appreciate it.

As for the bug report, thanks for sharing it with us. I've logged it in our current backlog, and we'll work on it whenever we have the time.

Kind regards,
Vladi
Telerik
 

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