Avoid "async void" methods, because any exceptions not handled by the method will crash the process (https://github.com/Microsoft/vs-threading/blob/main/doc/analyzers/VSTHRD100.md)

'JsonRPCPlugin.JsonRPC' hides inherited member 'JsonRPCPluginBase.JsonRPC'. Use the new keyword if hiding was intended.

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

'WebClient.WebClient()' is obsolete: 'WebRequest, HttpWebRequest, ServicePoint, and WebClient are obsolete. Use HttpClient instead.' (https://aka.ms/dotnet-warnings/SYSLIB0014)

Synchronously waiting on tasks or awaiters may cause deadlocks. Use await or JoinableTaskFactory.Run instead. (https://github.com/Microsoft/vs-threading/blob/main/doc/analyzers/VSTHRD002.md)

Synchronously waiting on tasks or awaiters may cause deadlocks. Use await or JoinableTaskFactory.Run instead. (https://github.com/Microsoft/vs-threading/blob/main/doc/analyzers/VSTHRD002.md)

Synchronously waiting on tasks or awaiters may cause deadlocks. Use await or JoinableTaskFactory.Run instead. (https://github.com/Microsoft/vs-threading/blob/main/doc/analyzers/VSTHRD002.md)

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

'AppDomain.GetCurrentThreadId()' is obsolete: 'AppDomain.GetCurrentThreadId has been deprecated because it does not provide a stable Id when managed threads are running on fibers (aka lightweight threads). To get a stable identifier for a managed thread, use the ManagedThreadId property on Thread instead.'