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

'X509Certificate2.X509Certificate2()' is obsolete: 'X509Certificate and X509Certificate2 are immutable. Use the appropriate constructor to create a new certificate.' (https://aka.ms/dotnet-warnings/SYSLIB0026)

The variable 'ex' is declared but never used

The variable 'hasPrivateKey' is assigned but its value is never used

'X509Certificate2.PrivateKey' is obsolete: 'X509Certificate2.PrivateKey is obsolete. Use the appropriate method to get the private key, such as GetRSAPrivateKey, or use the CopyWithPrivateKey method to create a new instance with a private key.' (https://aka.ms/dotnet-warnings/SYSLIB0028)

'X509Certificate2.PrivateKey' is obsolete: 'X509Certificate2.PrivateKey is obsolete. Use the appropriate method to get the private key, such as GetRSAPrivateKey, or use the CopyWithPrivateKey method to create a new instance with a private key.' (https://aka.ms/dotnet-warnings/SYSLIB0028)

'X509Certificate2.X509Certificate2()' is obsolete: 'X509Certificate and X509Certificate2 are immutable. Use the appropriate constructor to create a new certificate.' (https://aka.ms/dotnet-warnings/SYSLIB0026)

The variable 'hasPrivateKeyJks' is assigned but its value is never used

The variable 'hasPrivateKey' is assigned but its value is never used