[BUG] Exception when creating breakpoints with NVIM and the Unity debugger

[Erifirin]

Describe the Issue

In short, Unity debug adapter does not comply with DAP specification.

I use nvim to work with Unity projects and visualstudiotoolsforunity.vstuc as DAP. It works fine at first. Debug adapter attaches to Unity without any errors. However, if I set a breakpoint somewhere, my debug session crashes with NullReferenceException:

System.NullReferenceException: Object reference not set to an instance of an object.
   at Microsoft.VisualStudio.Unity.ExceptionManager.ProcessRequest(SetExceptionBreakpointsArguments arguments)
   at Microsoft.VisualStudio.Unity.AD7DebugAdapter.HandleSetExceptionBreakpointsRequest(SetExceptionBreakpointsArguments arguments)
   at Microsoft.VisualStudio.Shared.VSCodeDebugProtocol.DebugAdapterBase.HandleProtocolRequest(String requestType, Object requestArgs)
   at Microsoft.VisualStudio.Shared.VSCodeDebugProtocol.DebugAdapterBase.OnProtocolRequestReceived(Object sender, RequestReceivedEventArgs e)
   at Microsoft.VisualStudio.Shared.VSCodeDebugProtocol.Protocol.DebugProtocol.OnRequestReceived(String command, IRequestResponder responder)
   at Microsoft.VisualStudio.Shared.VSCodeDebugProtocol.DebugAdapterBase.HandleSetExceptionBreakpointsRequestAsync(IRequestResponder`1 responder)
   at Microsoft.VisualStudio.Shared.VSCodeDebugProtocol.DebugAdapterBase.HandleSetExceptionBreakpointsRequestAsync(IRequestResponder`2 responder)
   at Microsoft.VisualStudio.Shared.VSCodeDebugProtocol.DebugAdapterBase.<InitializeProtocolClient>b__5_37(IRequestResponder`2 r)
   at Microsoft.VisualStudio.Shared.VSCodeDebugProtocol.Protocol.RequestWithResponseInfo`2.InvokeHandler(DebugProtocol protocol, ProtocolRequest request, Object args)
   at Microsoft.VisualStudio.Shared.VSCodeDebugProtocol.Protocol.DebugProtocol.HandleIncomingRequest(String msg)
   at Microsoft.VisualStudio.Shared.VSCodeDebugProtocol.Protocol.DebugProtocol.HandleIncomingMessage(String msg)
   at Microsoft.VisualStudio.Shared.VSCodeDebugProtocol.Protocol.DebugProtocol.ProcessMessageBody()
   at Microsoft.VisualStudio.Shared.VSCodeDebugProtocol.Protocol.DebugProtocol.ReaderThreadProc()

As it turns out, the exception occurs due to the lack of filterOptions in SetExceptionBreakpointsRequest. But according to the specification, filterOptions are considered optional (https://microsoft.github.io/debug-adapter-protocol/specification.html#Requests_SetExceptionBreakpoints).

Looks like an issue.

Environment Information

nvim 0.10.2
visualstudiotoolsforunity.vstuc 1.0.5
Unity 2022.3.54 + Visual Studio Editor package 2.0.22

vstuc log: vstuc.log
nvim dap config: unity.lua

[jbevain]

Thanks for the report! This exception should be fixed in the next release of the Unity extension for Visual Studio Code.