C# NRE not detected for some reason

SonarQube for IDE Visual Studio
1
  • Operating system: Windows 10
  • Visual Studio version: Microsoft Visual Studio Community 2022 (64-bit) - Current Version 17.13.6
  • SonarQube for Visual Studio plugin version: SonarQube for Visual Studio 2022, v8.17.0.12886
  • Programming language you’re coding in: C#
  • Is connected mode used: no

And a thorough description of the problem / question:

A NRE is not detected in the following code:

public class Test
{
	public string Prop { get; set; }
}

public static string GetProp(Test t1, Test t2)
{
	if (t1 != null)
		return t1.Prop;

	if (t2 != null)
		return t1.Prop;

	return string.Empty;
}

static void Main()
{
	var prop = GetProp(null, new Test { Prop = "hey" });
	Console.WriteLine(prop);
}

Obviously, this is a simplified version of what we encountered, but on a colleague’s PC, with VS 2019, it was detected initially, but then after building again, not any more. Super strange.

2

Hi,

The current version of SonarQube for Visual Studio (formerly SonarLint) is 10.23. Can you upgrade and see if this is still replicable?

 
Thx,
Ann

3

Hi Ann,
just checked, I have no updates, but meantime SonarQube probably auto-updated to 8.18.0.13071… I can’t find a 10.xx version, even after uninstalled 8.18, so I reinstalled it.
I can confirm, the issue still reproduces with latest SonarQube I could find.
Cheers,
Marton

Edit: confirmed 8.18 is latest available

4

Hi Marton,

Thanks for checking for updates. I got confused about which IDE you were using, and so I was wrong about the latest version. Sorry about that.

Could you provide your log for this?

 
Thx,
Ann