Bug 60573 - DataContractJsonSerializer: Deserialization of Dictionary throws ArgumentNullException
Summary: DataContractJsonSerializer: Deserialization of Dictionary throws ArgumentNull...
Alias: None
Product: Class Libraries
Classification: Mono
Component: WCF assemblies ()
Version: 5.4 (2017-06)
Hardware: Macintosh All
: --- normal
Target Milestone: Future Release
Assignee: Bugzilla
Depends on:
Reported: 2017-11-08 16:50 UTC by Patrick Dähne
Modified: 2017-11-16 11:02 UTC (History)
2 users (show)

Is this bug a regression?: ---
Last known good build:

Test case (848 bytes, text/x-csrc)
2017-11-08 16:50 UTC, Patrick Dähne

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Description Patrick Dähne 2017-11-08 16:50:50 UTC
Created attachment 25609 [details]
Test case

When I try to deserialize a Dictionary using DataContractJsonSerializer where UseSimpleDictionaryFormat == true, I get an ArgumentNullException. Same code works as expected with Microsoft .Net.

Test case is attached to this bug report. Compile with the following command line:

mcs -reference:System.Runtime.Serialization JSONBug.cs

Run the test with the following command line:

mono JSONBug.exe

I expect to see the following output:

a = 1

Instead i get the ArgumentNullException.