The annotation for nullable reference types should only be used in code within a '#nullable' annotations context.

Non-constant fields should not be visible (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca2211)

Non-constant fields should not be visible (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca2211)

Non-constant fields should not be visible (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca2211)

Non-constant fields should not be visible (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca2211)

The behavior of 'byte.ToString(string)' could vary based on the current user's locale settings. Replace this call in 'HexEncoderTests.HexEncoderOutputIsCorrect()' with a call to 'byte.ToString(string, IFormatProvider)'. (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1305)

Remove the ToString call in order to use a strongly-typed StringBuilder overload (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1830)

The behavior of 'int.ToString()' could vary based on the current user's locale settings. Replace this call in 'CacheHashTests.CreateLongString()' with a call to 'int.ToString(IFormatProvider)'. (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1305)

The behavior of 'StringBuilder.AppendFormat(string, params object[])' could vary based on the current user's locale settings. Replace this call in 'CommandParserTests.ToNumericList<T>(CultureInfo, params T[])' with a call to 'StringBuilder.AppendFormat(IFormatProvider, string, params object[])'. (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1305)