== Why is this an issue?

There's no need to null test in conjunction with an ``++is++`` test. ``++null++`` is not an instance of anything, so a null check is redundant.

=== Noncompliant code example

[source,csharp]
----
if (x != null && x is MyClass) { ... }  // Noncompliant

if (x == null || !(x is MyClass)) { ... } // Noncompliant
----

=== Compliant solution

[source,csharp]
----
if (x is MyClass) { ... }

if (!(x is MyClass)) { ... }
----
ifdef::env-github,rspecator-view[]

'''
== Implementation Specification
(visible only on this page)

=== Message

Remove this unnecessary null check; "is" returns false for nulls.


include::../highlighting.adoc[]

endif::env-github,rspecator-view[]