/home/runner/work/wolverine/wolverine/src/Persistence/Wolverine.Polecat/PolecatIntegration.cs(180,16): warning CS8714: The type 'T' cannot be used as type parameter 'T' in the generic type or method 'IEvent<T>'. Nullability of type argument 'T' doesn't match 'notnull' constraint. [/home/runner/work/wolverine/wolverine/src/Persistence/Wolverine.Polecat/Wolverine.Polecat.csproj::TargetFramework=net9.0]

/home/runner/work/wolverine/wolverine/src/Persistence/Wolverine.EntityFrameworkCore/Codegen/EFCorePersistenceFrameProvider.cs(40,17): warning CS8767: Nullability of reference types in type of parameter 'result' of 'bool EFCorePersistenceFrameProvider.TryBuildFetchSpecificationFrame(Variable specVariable, IServiceContainer container, out Frame? frame, out Variable? result)' doesn't match implicitly implemented member 'bool IPersistenceFrameProvider.TryBuildFetchSpecificationFrame(Variable specVariable, IServiceContainer container, out Frame? frame, out Variable? result)' (possibly because of nullability attributes). [/home/runner/work/wolverine/wolverine/src/Persistence/Wolverine.EntityFrameworkCore/Wolverine.EntityFrameworkCore.csproj::TargetFramework=net9.0]

/home/runner/work/wolverine/wolverine/src/Persistence/Wolverine.EntityFrameworkCore/Codegen/EFCorePersistenceFrameProvider.cs(40,17): warning CS8767: Nullability of reference types in type of parameter 'frame' of 'bool EFCorePersistenceFrameProvider.TryBuildFetchSpecificationFrame(Variable specVariable, IServiceContainer container, out Frame? frame, out Variable? result)' doesn't match implicitly implemented member 'bool IPersistenceFrameProvider.TryBuildFetchSpecificationFrame(Variable specVariable, IServiceContainer container, out Frame? frame, out Variable? result)' (possibly because of nullability attributes). [/home/runner/work/wolverine/wolverine/src/Persistence/Wolverine.EntityFrameworkCore/Wolverine.EntityFrameworkCore.csproj::TargetFramework=net9.0]

/home/runner/work/wolverine/wolverine/src/Transports/Kafka/Wolverine.Kafka/KafkaTransportExtensions.cs(273,25): warning CS8625: Cannot convert null literal to non-nullable reference type. [/home/runner/work/wolverine/wolverine/src/Transports/Kafka/Wolverine.Kafka/Wolverine.Kafka.csproj::TargetFramework=net9.0]

/home/runner/work/wolverine/wolverine/src/Wolverine/Runtime/Handlers/Executor.cs(399,27): warning CS0419: Ambiguous reference in cref attribute: 'Build'. Assuming 'Wolverine.Runtime.Handlers.Executor.Build(Wolverine.Runtime.IWolverineRuntime, Microsoft.Extensions.ObjectPool.ObjectPool<Wolverine.Runtime.MessageContext>, Wolverine.Runtime.Handlers.HandlerGraph, System.Type)', but could have also matched other overloads including 'Wolverine.Runtime.Handlers.Executor.Build(Wolverine.Runtime.IWolverineRuntime, Microsoft.Extensions.ObjectPool.ObjectPool<Wolverine.Runtime.MessageContext>, Wolverine.Runtime.Handlers.HandlerGraph, Wolverine.Runtime.Handlers.IMessageHandler, Wolverine.Logging.IMessageTracker)'. [/home/runner/work/wolverine/wolverine/src/Wolverine/Wolverine.csproj::TargetFramework=net9.0]

/home/runner/work/wolverine/wolverine/src/Wolverine/Runtime/Handlers/Executor.cs(64,65): warning CS0419: Ambiguous reference in cref attribute: 'Executor.Build'. Assuming 'Wolverine.Runtime.Handlers.Executor.Build(Wolverine.Runtime.IWolverineRuntime, Microsoft.Extensions.ObjectPool.ObjectPool<Wolverine.Runtime.MessageContext>, Wolverine.Runtime.Handlers.HandlerGraph, System.Type)', but could have also matched other overloads including 'Wolverine.Runtime.Handlers.Executor.Build(Wolverine.Runtime.IWolverineRuntime, Microsoft.Extensions.ObjectPool.ObjectPool<Wolverine.Runtime.MessageContext>, Wolverine.Runtime.Handlers.HandlerGraph, Wolverine.Runtime.Handlers.IMessageHandler, Wolverine.Logging.IMessageTracker)'. [/home/runner/work/wolverine/wolverine/src/Wolverine/Wolverine.csproj::TargetFramework=net9.0]

/home/runner/work/wolverine/wolverine/src/Wolverine/Runtime/Agents/IAgent.cs(44,27): warning CS1066: The default value specified for parameter 'cancellationToken' will have no effect because it applies to a member that is used in contexts that do not allow optional arguments [/home/runner/work/wolverine/wolverine/src/Wolverine/Wolverine.csproj::TargetFramework=net9.0]

/home/runner/work/wolverine/wolverine/src/Wolverine/Middleware/TryCatchFinallyFrame.cs(177,17): warning CS8767: Nullability of reference types in type of parameter 'variable' of 'bool CatchBlockMethodVariables.TryFindVariableByName(Type dependency, string name, out Variable? variable)' doesn't match implicitly implemented member 'bool IMethodVariables.TryFindVariableByName(Type dependency, string name, out Variable? variable)' (possibly because of nullability attributes). [/home/runner/work/wolverine/wolverine/src/Wolverine/Wolverine.csproj::TargetFramework=net9.0]

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