Fix Self referencing loop detected for property

[eseneckiy]

Fix Self referencing loop detected for property 'Parent'

Newtonsoft.Json.JsonSerializationException : Self referencing loop detected for property 'Parent' with type 'System.Globalization.CultureInfo'. Path 'Culture'. StackTrace: at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.CheckForCircularReference(JsonWriter writer, Object value, JsonProperty property, JsonContract contract, JsonContainerContract containerContract, JsonProperty containerProperty) at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.CalculatePropertyValues(JsonWriter writer, Object value, JsonContainerContract contract, JsonProperty member, JsonProperty property, JsonContract& memberContract, Object& memberValue) at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeObject(JsonWriter writer, Object value, JsonObjectContract contract, JsonProperty member, JsonContainerContract collectionContract, JsonProperty containerProperty) at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeValue(JsonWriter writer, Object value, JsonContract valueContract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerProperty) at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeObject(JsonWriter writer, Object value, JsonObjectContract contract, JsonProperty member, JsonContainerContract collectionContract, JsonProperty containerProperty) at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeValue(JsonWriter writer, Object value, JsonContract valueContract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerProperty) at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.Serialize(JsonWriter jsonWriter, Object value, Type objectType) at Newtonsoft.Json.JsonSerializer.SerializeInternal(JsonWriter jsonWriter, Object value, Type objectType) at Newtonsoft.Json.JsonSerializer.Serialize(JsonWriter jsonWriter, Object value, Type objectType) at Newtonsoft.Json.JsonConvert.SerializeObjectInternal(Object value, Type type, JsonSerializer jsonSerializer) at WireMock.Server.WireMockServer..ctor(WireMockServerSettings settings) at WireMock.Server.WireMockServer.Start(WireMockServerSettings settings)

[StefH]

@eseneckiy
Can you show example code / unit test when this happens?

[eseneckiy]

@eseneckiy Can you show example code / unit test when this happens?

Hi @StefH
Can't reproduce it on my local machine.
This exception is throws only on our CI pipeline for WireMock.Net 1.5.13. Changing version to 1.5.12 fixed this problem.
I'll try to find out the root cause.

[StefH]

@eseneckiy
The only way this can occur if you serialize the setting yourself somewhere in the pipeline or in your unit test project.

[eseneckiy]

Serialization is used for log purposes. In WireMockServer constructor settings is serialized for debug log.

protected WireMockServer(WireMockServerSettings settings)

// . . .

_settings.Logger.Debug("Server settings {0}", JsonConvert.SerializeObject(settings, Formatting.Indented));`